Abstract: Food with inputs from genetically modified organisms (GMOs) has met considerable skepticism among European Union (EU) consumers. The EU import ban on GM food has triggered a great deal of controversy and has been replaced by a mandatory labeling scheme. This study had two foci. First, we examined how different policies for the production and use of GMOs might influence the market outcome in consumer food markets. Second, we evaluated the welfare effects of the policy measures. We found that mandatory labeling often increases domestic welfare and, moreover, that in most cases it increases global welfare. On the other hand, a trade ban is more likely to decrease global welfare.

Abstract: This paper looks at the fuel choice of urban households in major Ethiopian cities, using panel data collected in 2000 and 2004. It examines use of multiple fuels by households in some detail, a topic not much explored in the household fuel-choice literature in general, and in sub-Saharan Africa in particular. The results suggest that as households’ total expenditures rise, they increase the number of fuels used, even in urban areas, and they also spend more on the fuels they consume (including charcoal but not wood). The results also show that even fuel types such as wood are not inferior goods. The results support more recent arguments in the literature (using Latin American and Asian data) that multiple fuel use (fuel stacking) better describes fuel-choice behavior of households in developing countries, as opposed to the idea that households switch (completely) to other (more expensive but cleaner) fuels as their incomes rise. This study shows the relevance of fuel stacking (multiple fuel use)in urban areas in sub-Saharan Africa. While income is an important variable, the results of this study suggest the need to consider other variables such as cooking and consumption habits, dependability of supply, cost, and household preferences and tastes to explain household fuel choice, as well as to recommend policies that address issues associated with household energy use.

Abstract: In this paper, I address a difficult, important, and long-standing problem in national income accounting: How to capture the welfare contributions of nonmarket, public environmental goods? The strategy I advocate here is to use principles from economic accounting, welfare economics, and environmental valuation to define the nonmarket units that should be used in a quantity index of ecological goods and services. A goal is to mimic the household-level foundations of conventional national income or product accounts, but extend them to the nonmarket natural economy. I describe the underlying theory and show how it can be used to define a practical, empirical strategy for constructing a welfare-significant ecological quantity index.

Abstract: A cointegrated vector autoregressive (CVAR) model is estimated to determine the dynamic relationship between Nordic wholesale electricity prices and EU emissions trading scheme (EU-ETS) CO2 allowance prices. An impulse response analysis reveals that electricity prices have large short-term responses to CO2 price shocks, but that this response dampens over time. Using hourly Nordic electricity spot market prices, I find that the value of short-term response of electricity prices to a shock in CO2 prices in off-peak hours is consistent with expected values for near complete pass-through of CO2 emission costs when coal-generated power is at the margin. Likewise, the estimates reveal that peak hour electricity price responses to CO2 price shocks are as expected for a market that has near complete passthrough of CO2 emission costs when natural gas-generated power is at the margin. These results further suggest the Nordic electricity market is pricing as a competitive market.

Abstract: The distribution grid for delivering electricity to the user has been paid for as part of the charge per kilowatt-hour that covers the cost of the energy itself. Conservation advocates have promoted the adoption of policies that “decouple” electric distribution company revenues or profits from how much electricity goes through the lines. Their motivation is that usage-based pricing leads utilities to encourage use and discourages conservation. Because decoupling divorces profits from conduct, it runs against the dominant finding in regulatory economics in the last twenty years—that incentive-based regulation outperforms rate-of-return. Even if distribution costs are independent of use, some usage charges can be efficient. Price-cap regulation may distort utility incentives to inform consumers about energy efficiency—getting more performance from less electricity. Utilities will subsidize efficiency investments, but only when prices are too low. Justifying policies to subsidize energy efficiency requires either prices that are too low or consumers who are ignorant.

Abstract: Cost containment has emerged as a major point of contention in the current congressional debate about designing a cap-and-trade program to limit future U.S. greenhouse gas (GHG) emissions. This paper reviews basic concepts and policy options for cost management, drawing on a March 2008 workshop sponsored by Resources for the Future (RFF), the National Commission on Energy Policy, and Duke University’s Nicholas Institute for Environmental Policy Solutions. The different sources and temporal dimensions of cost uncertainty are explored, along with possible mechanisms for addressing short- and long-term cost concerns, including banking and borrowing, emissions offsets, a price cap (or safety valve), quantity-limited allowance reserve, and the concept of an oversight entity for GHG allowance markets modeled on the Federal Reserve. Recognizing that the inherent trade-off between environmental certainty and cost certainty has no perfect solution, the paper nonetheless concludes that numerous options exist for striking a reasonable and politically viable balance between these two objectives. In the effort to forge consensus around a particular set of options, it will be important for policymakers to strive to fit the remedy to the problem they are trying to solve and to preserve the underlying integrity of the overall program in terms of its long-term ability to sustain meaningful market incentives for low-carbon technologies.