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ECONOMIC JUSTIFICATIONS AND IMPLICATIONS OF TAXING WINDFALL PROFITS IN THE CALIFORNIA WHOLESALE ELECTRICITY MARKET
TESTIMONY OF DR. MARK N. COOPER
DIRECTOR OF RESEARCH
CONSUMER FEDERATION OF AMERICA
ON BEHALF OF
CONSUMER FEDERATION OF AMERICA AND CONSUMERS UNION
BEFORE THE
SUBCOMMITTEE
ON SELECT REVENUE MEASURES
OF THE
WAYS AND MEANS COMMITTEE
UNITED STATES HOUSE OF REPRESENTATIVES
June 13, 2001
Mr. Chairman and Members of the Committee,
I appreciate the opportunity to appear before you today to analyze energy tax
issues. When I received the invitation to testify, I looked through my files
and found that the first time I testified before Congress on energy tax options
was at a series of hearings in June of 1982. In the 19 years since I gave that
testimony, no series of events has called out for a careful consideration of
a windfall profits tax than the complete breakdown of the wholesale electricity
market and natural gas markets in California and throughout the Western United
States.
Let me put the magnitude of the economic problem created by the unprecedented
increase in electricity prices in perspective for you. In nominal dollars, the
increase in the amount paid for electricity at wholesale in California between
the end of October 2000 and April 2001(1) was
larger than the increase in the total national oil import bill in the entire
year after the fall of the Shah of Iran, which is widely recognized as the largest
energy price shock in the history of the nation.(2)
Expressed as a percentage of gross domestic product, the price increase suffered
by California in electricity costs is about twice as large as the increase suffered
by the nation in 1980 in its oil import bill.(3)
The impacts on electricity prices throughout the West would make these numbers
even larger.
The problem is certainly large. But, is it a federal problem that merits the
imposition of a windfall profits tax? I offer the following observations to
suggest that it is.
1. Fundamental demand and supply conditions in the California electricity
market make it vulnerable to the abuse of market power by energy producers.
2. The remarkable run up in prices is attributable in significant part to the
premature and unjustified deregulation by the Federal Energy Regulatory Commission
(FERC) of the wholesale electricity and natural gas markets in California and
FERC's subsequent failure to discipline pricing abuse in those and other markets.
3. Prices have been driven up by the strategic behavior of merchant generators
who have subsequently profited from those increases.
4. The profits are excessive by any reasonable measure.
5. Taxing away windfalls such as this will not detract from the incentive to
build generating capacity to meet demand at a reasonable profit. To the contrary,
removing the fun and profit from market manipulation will cause the supply-side
of the market to function more efficiently.
In making these points, I do not mean to suggest that California policymakers
and California utilities bear no responsibility for a dysfunctional market.
They certainly do,(4) but federal policymakers
made a substantial contribution to the problem and they have yet to make up
for their mistakes. The need for Congress to consider this type of policy stems,
in part, from the fact that the FERC has demonstrated its inability to ensure
that energy markets function properly. If the FERC cannot be counted on to enforce
laws that require just and reasonable rates, then other federal actions must
be taken to provide a back stop to an agency that has been derelict in its duty.
A windfall profits tax would be one such policy.
1. FUNDAMENTAL DEMAND AND SUPPLY CONDITIONS MAKE ELECTRICITY A VULNERABLE MARKET (5)
In the list of culprits identified above (FERC, merchant generators, California
regulators and California utilities), I do not include California consumers.
They are the victims in this drama, not the villains.
California is among the most electricity efficient states in the nation.(6)
It consumes less than 50 percent as much electricity as the rest of the country
per dollar of state output. On a heating and cooling degree day basis, it consumes
considerably less electricity than the rest of the nation.(7)
California consumers now pay the highest prices in the country for electricity.(8)
If the rest of the country were as electricity efficient as California, we would
only need the equivalent of 500 new power plants, instead of the 1300 that Vice
President Cheney has discussed.(9)
Those who suggest that California consumers do not pay enough for electricity
have not looked at the facts of the situation. Electricity is a necessity that
has no substitute on the demand side in the short-term.(10)
At the start of the twenty-first century, electricity is like oxygen - a basic
necessity to daily life.
Necessities like electricity have a low elasticity of demand. By this term,
economists mean that as prices increase (or decrease) demand does not decrease
(or increase) very much. The elasticity of demand is measured in terms of percentage
changes. For example, if a ten percent increase in price results in a 20 percent
decrease in demand, the elasticity of demand is said to equal 2 (20%/10%). When
the elasticity is greater than 1, demand is said to be elastic. Alternatively,
if a 10 percent increase in price results in a 2 percent decrease in demand,
the elasticity of demand is said to be .2, and this is considered inelastic.
The empirical evidence demonstrates that this is the situation in electricity
markets. The best evidence from California is that the short run elasticity
of demand is considerably less than 1.(11) In
fact, the short term elasticity of demand is less than .1. Even in the long
term, it is considerably less than 1.
The empirical evidence in California is that supply is also very inelastic in
the short term. The supply curve is very steep, (see Exhibit 1). The best evidence
from California is that the short run supply elasticity is considerably less
than 1. In fact the supply elasticity is probably less than .2 on the basis
of 1999 prices.(12) This is probably a higher
price elasticity than observed in 2000-2001, which suggests a supply elasticity
considerably less than .1 for the peak of 2000 (demand of 35000 MW to 45000
MW) and in the range of .1 to .15 for shoulder periods (demand between 25000
MW and 35000 MW).(13)
When demand and supply elasticities are this low, the potential for the abuse
of market power is substantial.(14) Market power
is the ability of suppliers to raise prices and earn excess profits. In simple
terms, when we talk about market forces, we mean the ability of consumers to
cut back or shift their demand and the ability of producers to increase their
output in response to price increases -- we mean supply and demand elasticities.
If these elasticities are too small, market forces are weak and the exercise
of market power will take place. Under these circumstances, firms with relatively
small market shares can increase profits by withholding supplies. The evidence
in California clearly suggests that they have beenq the victims of a monumental
market failure. (15)
2. FEDERAL REGULATORY RESPONSIBILITY FOR THE PROBLEM
The Federal Energy Regulatory Commission bears a substantial part of the blame
for the problem in California because it deregulated prices in a market which
was vulnerable to abuse and failed to police that abuse once it began. FERC
prematurely deregulated price over the objection of many in California.(16)
In fact, FERC fought California authorities to assert control over the Independent
System Operator (ISO) and then deregulated the price of energy in the California
wholesale market, even though its market analysis was fundamentally flawed.(17)
This enabled private interests to take advantage of the bad situation that they
had helped to create.
FERC failed to reasonably analyze the market before it deregulated. It treated
the state as one big market, when it is evident that there are distinct and
separate north-south markets because of a capacity constraint.(18)
It failed to identify load pockets that would be constrained at peak times.(19)
It deregulated ancillary services, even though it was told market power existed
in these markets and accepted on faith that "must run" plants would
mitigate market power, without any concrete plan to do so. (20)
FERC refuses to responsibly police the markets it has irresponsibly deregulated.(21)
It has defended the secrecy of spot market bidding, which appears to have the
effect of allowing tight oligopolies of bidders to play their games behind closed
doors.(22) It refused to requisition and study
bidding records for abusive patterns after the first price spikes in 1998, (23)
and the second price spikes in 1999,(24) which
emboldened strategic bidders for the really big killing of 2000. It failed to
analyze the data once it was collected and has taken over a year to begin to
address the problems in the natural gas market.(25)
After finding rates were unjust and unreasonable, it failed to adopt mitigation
measures that could discipline the market. (26)
FERC approves rates without subjecting them to refund, so that market manipulators
know they will never have to disgorge their ill-gotten(27)
gains. It even rushed in to allow a hasty reorganization of one of the California
utilities to shield its assets from its creditors.(28)
As the only dissenting Commissioner put it, if the FERC had exercised more responsibility
earlier, "capping spot market prices at variable operating costs plus a
capacity adder
there is reason to believe that applicants would not be
in such dire straits now."(29)
3. EXPLOITATION IN A DYSFUNCTIONAL MARKET
Premature deregulation led to profit maximization that tightened electricity
markets by reducing supplies, limiting reserves, eliminating back up requirements,
undercutting conservation programs, and preventing facilities from being built.(30)
The small number of suppliers and the tendency for electricity product and geographic
markets to be highly restricted in time and space make the exercise of market
power and the implementation of gaming strategies that drive prices up easy
to execute. Price spikes produce such huge windfalls that suppliers exhibit
an OPEC-like (backward bending) supply curve, in which supplies are reduced,
not increased, as prices rise.
On any given day during the recent price spikes fossil fuel plants owned or
controlled by merchants were producing between 2000 and 6000 megawatts less
than their historic average.(31) The same independent
generators also opposed long-term contracts, which would have kept utilities
out of the volatile spot market.(32) The disappearance
of these assets is part of a pattern of resource denial that has the effect
of driving up the price of electricity.(33) Whether
it is purely strategic, or illegally manipulative, or even collusive, remains
to be seen,(34) but there is no doubt that the
pursuit of private interests has denied the electricity market in California
substantial resources.(35) This profit driven
denial of resources equal to between 10 and 20 percent of peak demand had a
substantial impact on price and performance.(36)
The CAL-ISO, the sole entity to produce a detailed analysis of bidding behavior,(37)
estimated that approximately half of the price increase through November 2000
is attributable to price gouging (offering prices far above costs) or capacity
hoarding (physical withholding of supply). This detailed study of actual bidding
behavior by every major player in the California market, charged that there
had been either price gouging or physical withholding in virtually every hour
between May and November (a total of 25,000 bid/hours). Daisy chains of transactions
have been developed to avoid regulatory scrutiny. In the colorful language of
a new game of consumer abuse we have hockey stick bidding and megawatt laundering,
but they all mean the same thing, consumers are being ripped off. (38)
The inevitable result of greed, irresponsibility and mismanagement in a volatile
market(39) for a vulnerable commodity is a massive,
inefficient and unjustified transfer of wealth from consumers to producers.(40)
Worse still this analysis does not even deal with the period after November
2000, when the excessive pricing become vastly more abusive.
The CAL-ISO has asked for refunds of over $6 billion,(41)
but the CAL-ISO analysis does not include the results of any investigation into
natural gas prices in the California market and is based on a methodology distorted
by a series of erroneous assumptions dictated by the FERC. A detailed and direct
comparison of actual costs incurred and prices charged on a plant-by-plant basis,
which is the methodology used to order the wholesale electricity market for
six decades prior to the deregulation experiments of the 1990s, would inevitably
reveal that the abuses are much larger than $6 billion.
4. EXCESS PROFITS
For the purposes of empirically demonstrating excess profits (and the flaw in
FERC's recent failed attempts to impose discipline on a dysfunctional market),
we analyze evidence in the record for January 2001 (See Exhibit 2).(42)
Assuming a least efficient generator using the most expensive inputs for January
2001, FERC's methodology establishes a ceiling price (or market clearing price)
of $273/MWh. Since all generators are allowed to charge up to that level without
scrutiny, it appears they fully exploited the artificially high benchmark in
determining what to charge in California's dysfunctional market. The average
wholesale price in January 2001 was $307. (43)
However, 99 percent of the generators did not incur costs at that level, since
they are much more efficient than that. Consequently, and inevitably the prices
they receive are far above their costs. At the average level of efficiency known
to exist in California, the actual costs incurred, even assuming the high cost
inputs, would have been half the ceiling level.(44)
In other words, not only are virtually all generators more efficient than FERC's
benchmark, but also the average generator is twice as efficient. While the FERC
methodology would allow them to charge $273/MWh without any scrutiny, the actual
costs would be about $150/MWh. The difference, equal to about $120/MWh, constitutes
a huge windfall and unreasonable level of profit.
The CAL-ISO has estimated that a new generation unit being brought on line with
heavy capital costs would be paid off in less than two years. The implicit return
on equity would be approximately 85%.(45) Similarly,
the County of San Diego calculated a cost of $120/MWh for a new generation plant.
At the FERC authorized ceiling prices, which are not subject to scrutiny, the
plant would be paid off in one year.(46) Such
rates of return are historically unprecedented and patently unreasonable.
The above analyses still assume that all producers pay the high, spot price
for natural gas and air emission credits. In fact, there are many longer-term
contracts for gas at much lower prices and the typical generator in California
does not require emissions credits. This creates an even larger gap between
actual costs and the FERC's ceiling price benchmark (as shown in Exhibit 2).
Using an average cost of gas (assume $6.25 per MCF [thousand cubic feet]) and
assuming the average generator does not pay emissions credits would increase
the estimate of overcharges and windfalls by about one third. (47)
The patently unreasonable rates are not simply a one-month aberration. The CAL-ISO
analysis shows that by February 2001, even assuming the spot market price of
gas and NOx credits, the costs of a new plant brought on line when the restructured
market commenced in May 1998 in California would have been fully recovered in
just three years.(48) The implicit return on equity
would be in the range of 30 to 60 percent
More to the point, perhaps, the total estimated revenues above costs, even using
spot prices for gas and NOx costs, for Non-Utility Distribution Company generators
subject to FERC jurisdiction since the start of restructuring in May 1998, is
approximately $3.1 billion.(49) This is approximately
equal to the total capital paid by merchant generators to acquire the fossil
plants of the utilities.(50) In other words, by
abusing their market power, these entities have, at a minimum, recovered all
of their capital in approximately three years. If actual input costs were used,
the full cost recovery would have occurred even earlier. The return on equity
based on actual costs would fall in the range of 40 to 80 percent.
These direct estimates of price cost margins are confirmed by the bottom line
profit figures of the power generators who are selling into California. Comparing
the first quarter of 2001 to the first quarter of 2000, just prior to the meltdown
of the California market began; we observe a tripling of operating profits for
the largest fossil fuel generators and marketers, as the first quarter financial
results, focusing on wholesale or trading business segments and operating results,
shows.
| PROFITS IN MILLIONS OF DOLLARS | ||
| 1Q2001 | 1Q2000 | |
| Enron: Wholesale Services (IBIT) | $755 | $429 |
| Duke: Energy Services (EBIT) | 428 | 139 |
| MIR: With California contingency (NI) | 420 | 95 |
| REI:Wholesale, (operating income) | 216 |
(22) |
| Dynegy: Marketing & Trade (NI) | 100 | 50 |
| Williams : Marketing and Trading (NI) | 485 | 78 |
| TOTAL | 2404 | 769 |
| Sources: Quarterly reports and Wall Street briefings. |
Although the companies do not break
their profits down by state, there is no doubt that California and the western
United States are primarily where the profits accrued.
5. TAXING AWAY WINDFALL PROFITS AND MONOPOLY RENTS DOES NOT HARM ECONOMIC
EFFICIENCY
California has paid a heavy price in economic rents(51)
- scarcity rents(52) and monopoly rents.(53)
An economic rent is "a payment to a factor in excess of what is necessary
to keep it at its present occupation."(54)
More importantly, "in perfect competition, no rents are made by any factor,
because changes in supply bid prices of inputs and labor down to the level just
necessary to keep them employed."(55)
It is well established in the economic literature that scarcity rents can be
taxed away without harming economic efficiency (see Exhibit 3). Since supply
of a fixed asset does not respond to price changes, there is little or no dead
weight loss. As Taylor, puts it,
Economic rent is the price of anything that has a fixed supply. Economic rent is also sometimes called pure rent. Economic rent is a significant concept in economics precisely because the quantity supplied does not depend on the price. Thus, a tax on economic rents would not change the amount supplied; it would not affect economic efficiency or cause a deadweight loss. (56)
Monopoly rents should be eliminated
to promote economic efficiency.(57) In fact, producers
do not even have an interest in delivering existing capacity. Indeed, when windfalls
become as massive as they have been in California, they distort economic incentives.
Producers make more by withholding supplies than by increasing output. Having
learned how to manipulate the market, the primary interest of producers is to
keep it tight.(58) Exorbitant prices do not elicit
efficient supply responses, they reward and create an incentive for more effective
gaming. There is a formal theory of this in economics. It is called a backward
bending supply curve. It has been extensively applied to labor markets(59)
and, not surprisingly, to the OPEC cartel. (60)
To state the concept in layman's terms, you make so much money by running the
price up that you are much better off by cutting back production than by increasing
output, which would lower the price. You can only get away with this when demand
is inelastic (since that creates huge economic rents) and the supply beyond
your control cannot be easily expanded in the short-term (since competition
would dissipate the rents). (61)
Claims that the market needs electricity priced in the hundreds of dollars per
MWh to elicit efficient supply-sided responses are absurd on their face.(62)
Neither empirical reality nor economic theory supports this claim. Hundreds
of power plants were financed and placed under construction across the country
and including California long before anyone dreamed that prices would rise so
high. Payback periods of a couple of years for facilities with useful lives
that are decades long are unprecedented and unnecessary in a workably competitive
market to create adequate supply.
Given the situation in the California electricity market, a windfall profits
tax would play the useful role of taking the fun and profit out of market manipulation.
EXHIBIT
1 SUMMER 2000 SUPPLY CURVE
EXHIBIT 2 SCARCITY RENTS
________
Footnotes:
(1) The price of electricity paid in the wholesale market, which
falls entirely and solely under the authority of the FERC, increased from just
under $40/MWh (megawatt hours) for the month of November 1999 to about $160/MWh
for the month of November 2000 November (Cal-ISO filing in Docket NO. EL00-95-012,
Attachment A: Analysis of Market Power in California's Wholesale Energy Markets;
California ISO, Report on Real Time Supply Costs Above Single Price Auction
Threshold: December 8, 2000 - January 31, 2001 (February 28, 2001).. However,
since November 2000 the price increased to over $360/MWh in February 2001 (Sheffrin,
Anjali, Market Analysis Report (Memorandum to ISO Board of Directors, March
23, 2001). It is reported to have averaged $450/MWh in April.
(2) U.S. Department of Energy, Energy Information Administration, Monthly Energy
Review, December 2001, shows an increase in the national oil import bill of
$23 billion between 1979 and 1980.
(3) U.S. Bureau of the Census, Statistical Abstract of the United States: 2000,
Tables 715 and 719 give the gross national and state product. For the U.S in
late 1979-80., the impact of the second oil price shock is calculated as a $23
billion increase in a $2.8 trillion economy. For California in late 2000-01,
I assume that prices return to historic levels and calculate the impact as a
$25 billion increase in a $1.3 trillion economy.
(4) Reconsidering Electricity Restructuring (Consumer Federation and Consumers
Union, November 2000) (hereafter,
Cooper, Reconsidering). Behind the Headlines of electricity Restructuring (Consumer
Federation, March 2000), Back To Basics In Analyzing The Failure Of Electricity
Restructuring Accepting The Limits Of Markets." Energy Markets in Turmoil,
Institute for Regulatory Policy Studies Illinois State University, May 17, 2001
(5) Cooper, Mark, Industrial Organization and Market Performance in the Transportation
and Communications Industries: A Review of Current Theories and Empirical Applications
to the Railroad, Electric Utility, Airline, Telecommunications and Oil Pipeline
Industries with Hypotheses about Natural Gas Pipelines (January 1986) (hereafter,
Cooper, Organization), identified basic economic conditions in the electricity
industry that raise doubts about the prospects for deregulation as the debate
was beginning (see also Cooper, Mark, "Theory vs. Reality," Consumer
Federation of America Utilities Conference, April 6, 1987). Cooper, Mark, "Protecting
the Public Interest in the Transition to Competition in New York Industries,"
The Electric Utility Industry in Transition (Public Utilities Reports, Inc.
& the New York State Energy Research and Development Authority, 1994), stated
the concerns as the policy of restructuring was being formulated. Cooper, Mark,
Residential Consumer Economics of Electric Utility Restructuring (Consumer Federation
of America and Consumers Union, July 1998) (hereafter, Cooper, Economics), identified
specific flaws in the restructuring policies that had been adopted. Electricity
Restructuring and the Price Spikes of 1998 (Consumer Federation of America and
Consumers Union, June 1999) (hereafter, Cooper, Spike).
(6) Cambridge Energy Research Associates (CERA), Beyond California's Power
Crisis: Impact, Solutions, and Lesson (2001), at 36, demonstrates superior efficiency
of California.
(7) U.S. Department of Energy, Energy Information Administration, A Look at
Residential Energy Consumption in 1997, Table CE3-7e, shows Califronia has 12
percent fewer cooling degree days than the national average.Tabble CE1-7c, shows
California consumes 40 percent less electricity per household than the national
average. Table CE1-7c, shows that the energy consumption per household where
the end use is electric air conditions is 37 percent less in California.Table
CE2-7c shows that where electricity is used for space heating, California space
heating intensity is 22 percent below the national average.
(8) U.S. Department of Energy Energy Information Administration, Estimated U.S.
Electric Utility Average Pr Kilowatt Hour to Ultimate Consumers: December 2000,
shows that California residential consumers paid the sixth highest rates in
the contiguous 48 states in December 2000 and the recently implemented price
increases will drive those rates to the highest level in the country.
(9) National Energy Policy (Report of the National Energy Policy Development
Group, May 2001),at 1-6. This comparison assumes a 30 percent difference in
efficiency between California and the rest of the nation, applied to the total
base of generation capacity of just under 800,000 megawatts (U.S. Department
of Energy, Energy Information Administration, Electric Power Annual: 1999, Volume
II (October 2000), Table 1)and converted to power plants at an average size
of 300 MW per plant.
(10) Webster's Third New International Dictionary, Unabridged (Springfield,
MA, 1986) defines a substitute as "something that is put in the place of
something else or is available for use instead of something else." This
is in contrast to the definition of deprivation, "to take away, to take
something away from." Turning out the lights or turning off the air conditioning
is not a substitute.
(11) Bushnell, James and Erin Mansur, The Impact of Retail Rate Deregulation
on Electricity Consumption in San Diego (University of California Energy Institute,
Program on Workable Energy, April 2001). In San Diego, where prices did vary
at the meter last summer, it was less than .03. Long run elasticities may be
somewhat higher, but they are generally considered to be considerably less than
1. Reviews of dozens of studies can be found in Bohi, Douglas, Analyzing Demand
Behavior: A Study of Energy Elasticities (Baltimore: Resources for the Future/Johns
Hopkins, 1981) and Pyndyck, Robert, S., The Structure of World Energy Demand
(Cambridge: MIT Press, 1979). Joskow, Paul and Richard Schmalensee, Markets
For Power: An Analysis of Electric Utility Deregulation (Cambridge: MIT press,
1984), concluded that many geographic markets would exhibit market power problems,
in large part because the empirical evidence dictated the use of low elasticities
of demand. A decade and a half later, Rose, Kenneth, Electric Restructuring
Issue for Residential and Small Business Customers (Columbus, Ohio: National
Regulatory Research Institute, June 2000), reviewed more recent literatures
and found short run elasticities in the range of .2 (citing Branch, E. Ralph,
"Short Run Income Elasticity of Residential Electricity Using Consumer
Expenditure Survey Data," Energy Journal, 14:4, 1993 and long run elasticities
of about 1.0 (citing Hyman, Leonard, S. America Electric Utilities: Past, Present
and Future (Arlington, VA; Public Utilities Reports, 1988). In analyzing the
California market, Borenstein, Severin and James Bushnell, "An Empirical
Analysis of the Potential for Market Power in California's Electricity Industry,"
Journal of Industrial Economics, 47:3, September 1999, state that "We have
run simulations for elasticities 0.1, 0.4, and 1.0, a range covering most current
estimates of short-run and long-run price elasticity."
(12) Puller, Steven L., "Pricing and Firm Conduct in California's Deregulated
Electricity Market" (November 2000).
(13) Marcus, William B., and Greg Russzon, Cost Curve Analysis of the California
Power Markets, (JBS Energy, Inc., September 29, 2000).
(14) In a seminal analysis of market power, Landes and Posner (Landes, W. M.
and R. A. Posner, "Market Power in Anti-trust Cases," Harvard Law
Review, 19: 1981, at 942), two prominent conservative economics point out that
when demand elasticities are low, market power becomes a substantial problem
. As they put it, the Lerner index, the formula for assessing the extent of
market power, "comes apart."
[T]he formula "comes apart" when the elasticity of demand is 1 or less. The intuitive reason is that a profit-maximizing firm would not sell in the inelastic region of its demand curve, because it could increase its revenues by raising price and reducing quantity. Suppose, for example, that the elasticity of demand were .5. This would mean that if the firm raised its price by one percent, the quantity demanded of its product would fall by only one-half of one percent. Thus its total revenues would be higher, but its total costs would be lower because it would be making fewer units of its product.
Raising price in these circumstances necessarily increases the firm's profits, and this is true as long as the firm is in the inelastic region of its demand curve, where the elasticity of demand is less than 1.
If the formula comes apart when the elasticity of demand facing the firm is l or less, it yields surprising results when the elasticity of demand is just a little greater than 1. For example, if the elasticity of demand is 1.01, equation (la) implies that the firm's price will be 101 times its marginal cost. There is a simple explanation: a firm will produce where its demand elasticity is close to one only if its marginal cost is close to zero, and hence a relatively low price will generate a large proportional deviation of price from marginal cost.
The formula "comes apart" because real world markets with elasticities
this low cannot work well. Firms raise prices to increase their profits because
they do not lose enough sales to competitors, or because consumers lack alternatives.
Given what we know about California demand and supply elasticities, the potential
for abuse of market power in the short term is substantial. Even in the long
run, as currently configured, the demand and supply elasticity is not sufficient
to keep the market from "coming apart."
(15) "Official" analyses of the long history of problems in California
before 2000 can be found in Bohn, Roger E., Alvin K. Klevorick and Charles G.
Stalon, Market Monitoring Committee of the California Power Exchange, Report
on Market Issues in the California Power Exchange Energy Markets (August 17,
1998) and Second Report on Market Issues in the California Power Exchange Energy
Markets (March 9, 1999). Early "official" analyses of the summer 2000
problem can be found in Borenstein, Everin, James Bushnell and Frank A. Wolak,
Diagnosing Market Power in California's Restructured Electricity Market (August
2000), Klein, Michael and Loretta Lynch, California's Electricity Options and
Challenges (August, 2000) and Wolak, Frank A., et al., "An Analysis of
the June 2000 Price Spike in California ISO's Energy and Ancillary Service Market,"
Market Surveillance Committee of the California Independent System Operator
(September 6, 2000); and ISO filing Analysis of Market Power. Analyses of problems
in other markets can be found in Cooper, Mark, Reconsidering Electricity Restructuring
(Consumer Federation and Consumers Union, November 2000); Behind the Headlines
of Electricity Restructuring: A Story of Greed, Irresponsibility and Mismanagement
of a Vital Service in a Vulnerable Market (Consumer Federation of America, March
20, 2001) for discussions of analyses of market power problems in other markets.
A recent additional analysis of withholding in another market can be found in
Allen, Daniel, Bruce Biewald and David Schlissel, Generator Outage Increases:
A Preliminary Analysis of Outage Trends in the New England Electricity Market
(Union of Concerned Scientists, January 7, 2001). A recent additional analysis
of the exercise of market power in the PJM pool can be found in Mansur, Erin,
T., Pricing Behavior in the Initial Summer of the Restructured PJM Wholesale
Electricity Market (University of California Energy Institute, Program on Workable
Energy Regulation, April 2001.
(16) CAL-ISO reminds the FERC that it raised significant question about the
granting of market-based rate authority and asked for prospective mitigation
measures long before the market breakdown became apparent (see "Motion
to Intervene and Protest of the California Independent System Operator,"
Williams Energy Marketing & Trading Company, Docket No. ER99-1722-004, April
2, 2001, at 7-8.
(17) Dowden, Lisa G, Robert C. McDiarmid and Will S. Huang, Market Power: Will
We Know it When We See It?: The California Experience, American Public Power
Association (December 2000).
(18) Borenstein, Severin, James Bushnell and Steven Stoft, "The Competitive
Effects of Transmission Capacity in a Deregulated Electricity Market,"
Rand Journal of Economics, 31:2, 2000, p. 318, state, matter of factly, "Congestion
on the north-south transmission lines often divides the state into at least
two distinct geographic markets." See also Dowden, Lisa G, Robert C. McDiarmid
and Will S. Huang, Market Power: Will We Know it When We See It?: The California
Experience, American Public Power Association (December 2000); Marcus, Crisis.
(19) Bushnell, James and Frank A. Wolak, "Regulation and the Leverage of
Local Market Power in California's Electricity Market" (July 1999).
(20) Dowden, McDiarmid, and Huang; Marcus, Crisis.
(21) Dowden, McDiarmid, and Huang, recounts the evidence presented to FERC on
market power and FERC's seeming inaction; Cooper, Spikes, discusses the failure
of FERC to react vigorously to complaints of market power in response to the
1998 price spikes.
(22) Dowden, McDiarmid and Huang.
(23) Cooper, Spikes.
(24) A frustrated FERC staff member wrote a blistering critique of FERC's unwillingness
to investigate transaction data in 1998 and 1999, just prior to the onset of
the big problems in the California market in 2000. See
Open Memorandum, From: Ron Rattey, OMTR, To:FERC Staff (June 2, 2000).
(25)
(26)
(27) Dowden, McDiarmid, and Huang.
(28) Order Authorizing Disposition of Jurisdictional Facilities, PGE National
Energy Group, Inc., PG&E Enterprises and PG&E Shareholdings, Inc, Federal
Energy Regulatory Commission (January 12, 2001).
(29) Commissioner Massey, dissenting, Order Authorizing Disposition of Jurisdictional
Facilities, PGE National Energy Group, Inc., PG&E Enterprises and PG&E
Shareholdings, Inc, Federal Energy Regulatory Commission (January 12, 2001).
(30) Cooper, Behind the Headlines. An interesting perspective on perceptions
about the crisis that tracks many of the arguments made below can be found in
"Roundtable Dialogue on California Energy Crisis," Sacramento Bee
(December 24, 2000). Marcus, William and Jan Hamrin, How We Got into the California
Energy Crisis, JBS Energy (2000}) (hereafter, Marcus, Crisis), provides specific
estimates of the size of each of the factors, as do ). Harvey, Hal Bentham Paulos
and Eric Heitz, "California and the Energy Crisis: Diagnosis and Cure,"
Energy Foundation, March 8, 2001.
(31) Rose, Other States, shows an increase in unplanned outages between 1999
and 2000 of about 1,000 MW in June, 1,600 MW in July, and 2,500 MW in August.
Marcus, Crisis, states, "Forced outage rates for California natural gas
plants over the past five years have gone from the traditional 5-10 percent
per year outage rate to an average of almost 50 percent."
(32)Krugman.
(33) Borenstein, Everin, James Bushnell and Frank A. Wolak, Diagnosing Market
Power in California's Restructured Electricity Market (August 2000).
(34) Puller; Department of Market Analysis, Report on Real Time Supply Costs
Above Single Price Auction Threshold: December 8, 2000 - January 31, 2001, February
28, 2001 (hereafter, DMA, Supply Costs)
(35) In addition to findings on market power cited above, see Bohn, Roger E.,
Alvin K. Klevorick and Charles G. Stalon, Market Monitoring Committee of the
California Power Exchange, Report on Market Issues in the California Power Exchange
Energy Markets (August 17, 1998) and Energy Information Administration, Horizontal
Market Power in Restructured Electricity Markets (March 2000).
(36) Marcus and Russzon call it a summer 2000 shift. They show that the jump
in gas prices runs the cost from 8.3 cents per kWh to 16.5 cents at 40,000 MW
without the summer shift and 24 cents with the summer shift. At 45,000 MW, the
price is 78 cents per kWh and at 35,000 MW, it is 11.4 cents. Adding 5,000 to
10,000 MW to the system has a huge benefit in relieving price pressures.
(37) Hildebrandt, Eric, Further Analysis of the Exercise and Cost Impacts of
Market Power in California's Wholesale Energy Markets (Department of Market
Analysis California Independent System Operator, March 2001), Impacts of Market
Power in California's Wholesale Energy Market: More Detailed Analysis Based
on Individual Seller Schedules and Transactions in the ISO and PX Markets (Department
of Market Analysis, California Independent System Operator, April 9, 2001);
Sheffrin, Anjali, Empirical Evidence of Strategic Bidding in California ISO
Real Time Market (Department of Market Analysis, California Independent System
Operator, March 21, 2001)
(38)
(39) Siddiqui, Afzal S., Chris Mornay and Karl Khavkin, "Excessive Price
Volatility in the California Ancillary Services Markets: Causes, Effects and
Solutions," Electricity Journal, 6.
(40) Sheffri, Anjali, Comprehensive Market Redesign: Options, Mitigation (October
4, 2000).
(41) The CAL-ISO and the FERC have been debating which markets to include in
the analysis and which abuses are subject to FERC jurisdiction hence publicly
discussed figures vary. FERC, Prospective Mitigation Order, at 5-6, gives s
brief recounting of the dispute.
(42) Comments of the California Independent System Operator Corporation on Staff's
Recommendation on Prospective Market Monitoring and Mitigation for the California
Wholesale Electric Power Market," San Diego Gas & Electric Company
v. Seller of Energy and Ancillary Services Into Markets Operated by the California
Independent System Operator and the California Power Exchange, March 22, 2001;
Request for Rehearing on Behalf of the County of San Diego, San Diego Gas &
Electric Company v. Seller of Energy and Ancillary Services Into Markets Operated
by the California Independent System Operator and the California Power Exchange,
March 22, 2001.
(43) Hildebrandt, Further Analysis, at 8.
(44) County of San Diego, at 7-8..
(45) Hildebrandt, Further Analysis, at 2.
On an annualized basis, wholesale energy prices since January 2000 are exceeding
the cost necessary for new investment by about 400%, and would allow recovery
of an investment in new supply in a period of less than two years.
Hildebrandt's assumed capital cost recovery was 14 to 15 percent. Thus, with
an estimate of actual cost recovery more than 400% larger than that, the annual
recovery is at least 70%. Moreover, the 14 to 15 percent for annual capital
cost recovery is based on a return on equity of 17% (see California Energy Commission,
Market Clearing Prices Under Alternative Resource Scenarios, February 2000,
at Table III-1).
(46) County of San Diego, at 7, calculates that a five-year capital recovery
would require a charge of $32/Mwh. Thus, a one-year pay back would require capital
cost recovery of $160/MWH. The cost of operating such a new plant would be just
over $120 per MWh, including $32/MWh for capital cost recovery. Thus, at a ceiling
price of $273, which implies a windfall of $150/MWh, the total capital cost
recovery is over $180 per MWh, indicating a less than one-year payback or a
return on investment of over 100 percent.
(47) After averaging over $12 per month for six months, the price of natural
gas has recently tumbled to less than $4.00 MCF, which is more in line with
historic levels. If the actual costs borne by generators were at this level
over the past winter, the windfalls estimated in text would about 50 percent
larger.
(48) Combining the results of Hildebrandt, Further Analysis, Tables 3-1, B-1
and B-2, we calculate annual recovery of capital costs under actual prices in
effect in California in the past three years as follows:
| NP15 | SP15 | ||
| Low Cost plant | ($500/MWh@ 14%ROI) | 46 | 32 |
| High cost plant | ($600/MWH@16%ROI) | 39 | 26 |
(49) Hildebrandt, Impacts of Market Power, at Table 2-4.
(50) Stanton, Same, "Buy Out?," Sacramento Bee, May 6, 2001, cites
PG&E plant sale revenue of $1.5 billion and SCE revenue of just under $1
billion. SDGE revenues were about $.5 billion.
(51) Teece, David, J. and Mary Coleman, "The Meaning of Monopoly: Antitrust
Analysis in High-Technology Industries," The Antitrust Bulletin (Winter
1998), identifies Ricardian (scarcity), Schumpeterian (entrepreneurial) and
monopoly (Porterian) rents (pp. 819-822). In an earlier analysis (Behind the
Headlines) I have identified the mirror image of Schumpeterian rents as "stupidity
rents." These are the substantially attributable to state policy makers
and utilities, which are not the subject of this hearing.
(52) Teece and Coleman, p. 819, define scarcity rents as :
In many contexts where knowledge and other assets underpin a firm's competitive
advantage, additional inputs cannot simply be purchased on the market to expand
output
historically at least, economists have associated Ricardian rents
with scarce natural resources like land or iron ore.
The origin of the concept has been associated with land, hence it is occasionally
referred to as ground rents (Rutherford, Donald, Dictionary of Economics (Routledge:
London, 1992), p. 137).
As land was regarded in classic economics as the only fixed factor of production, it alone earned rent. However, as any factor of production can be fixed in supply, 'rent' can be earned by any factor of production. Popular examples of factors with an inelasticity of supply abound; labor can earn economic rent as persons with rare talents (e.g. opera singers and top sports players) have high earnings largely consisting of economic rent.
(53) Teece and Coleman, p. 822) define present Monopoly (Porterian) rents which
"stems from the naked exercise of market power by a firm (or firms)."
(54) Pearce, George, The Dictionary of Modern Economics (MIT Press, Cambridge,
1984), p. 124.
(55) Bannock, Graham, R.E. Banock and Evan Davis, Dictionary of Economics (Penguin,
London, 1987). P. 128.
(56) P. 350.
(57) Scherer and Ross, pp. 15-29. Abuse of monopoly power imposes static, deadweight
loss (see Asch, Peter, Industrial Organization and Antitrust Policy (New York,
John Wiley and Sons: 1983) p. 83) and may impose dynamic x-efficiency losses
(see Asch, p. 97).
(58) Puller, Steven L., "Pricing and Firm Conduct in California's Deregulated
Electricity Market" (November 2000), finds strong evidence of static market
power and weak evidence of dynamic gaming in the first year of the market. There
is a general consensus that gaming increased in subsequent years (Kahn, Michael
and Loretta Lynch, California's Electricity Options and Challenges: Report to
Governor Gray Davis, (hereafter, Options) Chapter III; Marcus, William and Jan
Hamrin, How We Got into the California Energy Crisis, JBS Energy (2000}) (hereafter,
Marcus, Crisis).
(59) That the concept is routine is attested to by its inclusion in introductory
texts, see for example, Taylor, John, B., Economics (Houghton Mifflin, Boston,
1998), pp. 327-329.
(60) Adelman, Morris, "OPEC the Clumsy Cartel," The Energy Journal,
1:1980; Bohi, Douglas and W. David Montgomery, Oil Prices, Energy Security and
Import Policy (Resources for the Future, Washington, 1982); Aperjis, Dimitri,
The Oil Market in the 1980s: OPEC Oil Policy and Economic Development (Ballinger,
Cambridge, 1982); Teece, David, "OPEC Behavior: An Alternative View,"
in James M. Griffin and David J. Teece (Eds.), OPEC Behavior and World Oil Prices
(George Allen and Unwin, London, 1982); Adelman, Morris, "OPEC as a Cartel,"
in James M. Griffin and David J. Teece (Eds.), OPEC Behavior and World Oil Prices
(George Allen and Unwin, London, 1982).
(61) Wolak, Frank A., et al., "An Analysis of the June 2000 Price Spike
in California ISO's Energy and Ancillary Service Market," Market Surveillance
Committee of the California Independent System Operator (September 6, 2000),
p. 14 (hereafter, Wolak, Analysis).
(62) FERC, Prospective Mitigation Order, at 3, 4, 7.