Public-Good Valuation and Intrafamily Allocation

I derive values of marginal changes in a public good for two-person households, measured alternatively by household member i’s willingness to pay (WTP) for the good on behalf of the household, WTPi(H), or by the sum of individual WTP values across family members, WTP(C). Households are assumed to allocate their resources in efficient Nash bargains over private and common household goods. WTPi(H) is then found by trading off the public good against household goods, and WTP(C) by trading the public good off against private goods. I then find that WTPi(H) is higher (lower) when member i has a high (low) marginal valuation of the public good, but on average represents WTP(C) correctly. Individuals then tend to represent households correctly on average when questioned about the household’s WTP for a public good, even when they are purely selfish and answer truthfully. Counting all members’ WTP answers on behalf of the household then leads to double counting. Pure and paternalistic altruism (the latter attached to consumption of the public good) move each member’s WTP on behalf of the household closer to the true aggregate WTP, but only the latter raises aggregate WTP.public goods, willingness to pay, contingent valuation, intrafamily allocation, Nash bargaining

Low-level versus high-level equilibrium in public utility service

Heterogeneity of public utility services is common in developing countries. In a"high-level"equilibrium, the quality of utility services is high, consumer willingness to pay for services is high, the utility is well funded and staff well paid in order to induce high quality of performance. In a"low-level"equilibrium the opposite is the case. Which alternative occurs depends on both the quality of utility management, and public perceptions about service quality. If a utility administration has the potential to offer high-quality service, and the public is aware of this, high-quality equilibrium also requires the public’s service payments to be high enough to fund the needed pay incentives for the utility staff. When the public lack knowledge about the utility administration’s quality, the public’s initial beliefs about the utility administration’s quality also will influence their willingness to make adequate service payments for a high-quality equilibrium. This paper shows that, with low confidence, only a low-level equilibrium may exist; while with higher initial confidence, a high-level equilibrium become possible."Intermediate"(in between the low- and high-level) outcomes also can occur in early periods, with"high-level"outcomes later on.Economic Theory&Research,Political Economy,Town Water Supply and Sanitation,Urban Water Supply and Sanitation,Public Sector Economics

Allocative inefficiencies resulting from subsidies to agricultural electricity use : an illustrative model

This paper provides an analytical discussion of several interconnected resource allocation problems from under-pricing of electricity used by farmers for groundwater extraction. In these situations, groundwater extraction is inefficiently high even without electricity under-pricing. Moreover, part of the electric power supply intended for farmers is often diverted to other unauthorized uses (notably illicit consumption). The paper demonstrates that unless non-price electricity rationing imposes severe constraints on demand, the range of resource allocation problems includes insufficient incentives to provide high-level service by the power utility, insufficient incentives for farmers to install and operate efficient equipment, and losses due to political"rent seeking"activities to influence water allocations. It also shows that diversion of electricity to illicit uses can increase overall economic efficiency when this leads to less electricity use by farmers, thus somewhat ameliorating the problem of excessive groundwater extraction as well as the inefficiencies related to under-pricing of electricity. Systemic reforms for overcoming these problems may face severe political obstacles.Energy Production and Transportation,Water and Industry,Economic Theory&Research,Wastewater Treatment,Electric Power

Implications of a lowered damage trajectory for mitigation in a continuous-time stochastic model

This paper provides counterexamples to the idea that mitigation of greenhouse gases causing climate change, and adaptation to climate change, are always and everywhere substitutes. The author considers optimal policy for mitigating greenhouse gas emissions when climate damages follow a geometric Brownian motion process with positive drift, and the trajectory for damages can be down-shifted by adaptive activities, focusing on two main cases: 1) damages are reduced proportionately by adaptation for any given climate impact ("reactive adaptation"); and 2) the growth path for climate damages is down-shifted ("anticipatory adaptation"). In this model mitigation is a lumpy one-off decision. Policy to reduce damages for given emissions is continuous in case 1, but may be lumpy in case 2, and reduces both expectation and variance of damages. Lower expected damages promote mitigation, and reduced variance discourages it (as the option value of waiting is reduced). In case 1, the last effect may dominate. Mitigation then increases when damages are dampened: mitigation and adaptation are complements. In case 2, mitigation and adaptation are always substitutes.Climate Change Economics,Adaptation to Climate Change,Climate Change Mitigation and Green House Gases,Science of Climate Change,Climate Change Policy and Regulation

Strategic climate policy with offsets and incomplete abatement : carbon taxes versus cap-and-trade

This paper provides a first analysis of optimal offset policies by a"policy bloc"of fossil fuel importers implementing a climate policy, facing a (non-policy) fringe of other importers, and a bloc of fuel exporters. The policy bloc uses either a carbon tax or a cap-and-trade scheme, jointly with a fully efficient offset mechanism for reducing emissions in the fringe. The policy bloc is then shown to prefer a tax over a cap-and-trade scheme, since 1) a tax extracts more rent as fuel exporters reduce the export price, and more so when the policy bloc is larger relative to the fringe; and 2) offsets are more favorable to the policy bloc under a tax than under a cap-and-trade scheme. The optimal offset price under a carbon tax is half the tax rate; under a cap-and-trade scheme the quota and offset price are equal. The domestic carbon and offset price are both higher under a tax than under a cap-and-trade scheme when the policy bloc is small; when it is larger the offset price can be higher under a cap-and-trade scheme. Fringe countries gain by mitigation in the policy bloc, and more under a carbon tax since the fuel import price is lower, and since the price obtained when selling offsets is often higher (always so for a large fringe).Climate Change Economics,Climate Change Mitigation and Green House Gases,Energy Production and Transportation,Markets and Market Access,Environment and Energy Efficiency

Valuing statistical lives from observations of speed limits and driving behavior

The paper discusses how to derive empirical estimates of the value of a statistical life (VSL) from observations of highway driving speeds, and from how such speeds are affected by speed limits and penalties for speeding. When drivers optimize with respect to driving speeds, we discuss three alternative approaches. The first two rely on constructing drivers’ utility functions, and the last on revealed government preferences similar to that used by Ashenfelter and Greenstone (2002) (A-G). The two last approaches are based on observations of changed driving speeds when speed limits and speeding penalties change. When drivers are law obedient and adhere to speed limits only the A-G approach can be used. Their approach is however unrealistic in putting overly great demand on government information about VSL, and in addition provides upwardly biased average VSL estimates.Value of a statistical life; VSL; driving

Public-good valuation and intrafamily allocation

I derive the value of marginal changes in a public good for two-person households, measured alternatively by household member i’s willingness to pay (WTP) for the good on behalf of the household, WTPi(H), or by the sum of individual WTP values across family members, WTP(C). Households are assumed to allocate their resources in efficient Nash bargains over one private good for each member, and one common household good. WTPi(H) is then found by trading off the public good against the household good, and WTP(C) by trading the public good off against the private goods. I show that WTPi(H) is on average a correct representation of WTP(C), but is higher (lower) than this average when member 1 has a higher (lower) marginal public good value than member 2. Pure and paternalistic altruism (the latter attached to consumption of the public good) both move each member’s WTP on behalf of the household closer to the true aggregate WTP, while only the latter raises aggregate WTP. The results have important implications for interpretation of results from contingent valuation surveys of public-goods. In a large sample, individuals tend to represent households correctly on average when asked about household WTP, and counting all members’ WTP answers on behalf of the household will lead to double counting.Public goods; willingness to pay; contingent valuation; intrafamily allocation; Nash bargaining

"Revenue management"effects related to financial flows generated by climate policy

This paper discusses possible macroeconomic implications for low-income countries of increased revenue inflows that may follow from implementing certain global greenhouse gas mitigation policies. Such revenue sources include revenue from emissions offset mechanisms, direct investments, and financial transfers that form parts of possible future mitigation treaties. In the short run such revenue will come mainly from offset markets and donor-sponsored programs, with some additional financial inflows due to foreign direct investments. In the longer run, comprehensive global cap-and-trade or carbon tax schemes could provide a potentially much larger revenue flow to many low-income countries. The author argues that the macroeconomic implications of such flows are manageable in the short run, but the larger revenues resulting from global emissions schemes could overwhelm this capacity and lead to a number of potential macroeconomic management problems.Debt Markets,Climate Change Economics,Emerging Markets,Economic Theory&Research,Access to Finance

Taxes versus Cap-and-Trade in Climate Policy when only some Fuel Importers Abate

I study climate policy choices for a “policy bloc” of fuel-importers, when a “fringe” of other fuel importers have no climate policy, fuel exporters consume no fossil fuels, and importers produce no such fuels. The policy bloc and exporter blocs act strategically in fossil fuel markets. When the policy bloc sets a carbon tax, the fuel import price set by the exporter is reduced, and more so when the policy bloc is larger. The carbon tax then serves to extract the exporter’s rent. The fringe also gains from reduced fuel import prices, and gains more when the policy bloc is larger. When the policy bloc sets an emissions cap, fuel demand becomes less price elastic. In response, a monopolistic exporter sets the fuel export price higher than under a tax, which hurts both the policy bloc and the fringe. This effect can be stronger when the policy bloc is larger, so that the fringe loses when the policy bloc is larger, opposite to the tax policy case. Overall, a cap is inferior to a tax for fossil fuel importers, both those that implement a climate policy, and those that do not.climate policy, carbon taxes, cap-and-trade schemes, carbon emissions, strategic trade policy

Inertia in infrastructure development : some analytical aspects, and reasons for inefficient infrastructure choices

This paper uses some simple conceptual models to draw out various implications of infrastructure investments with long lifetimes for the ability of societies to reduce their future greenhouse gas emissions. A broad range of such investments, related both to energy supply and demand systems, may commit societies to high and persistent levels of greenhouse gas emissions over time, that are difficult and costly to change once the investments have been sunk. There are, the author argues, several strong reasons to expect the greenhouse gas emissions embedded in such investments to be excessive. One is that infrastructure investment decisions tend to be made on the basis of (current and expected future) emissions prices that do not fully reflect the social costs of greenhouse gas emissions resulting from the investments. A second, related, set of reasons are excessive discounting of future project costs and benefits including future climate damages, and a too-short planning horizon for infrastructure investors. These issues are illustrated for two alternative cases of climate damages, namely with the possibility of a"climate catastrophe,"and with a sustained increase in the marginal global damage cost of greenhouse gas emissions.Climate Change Economics,Energy Production and Transportation,Climate Change Mitigation and Green House Gases,Transport Economics Policy&Planning,Environment and Energy Efficiency