Using panel data from 50 countries and 35 urban areas (covering a wide range of country incomes), the authors summarize trends in motorization and the provision of roads, and they examine the ratio of motor vehicles to roads in a production function framework at both national andurban levels....

In November 1989, Mexico City's administration imposed a regulation banning each car from driving on a specific day of the week. The regulation has been both popular and controversial. Some feel that it is a reasonable concession aimed at alleviating congestion and pollution problems. Others...

How would travel demand in Sao Paulo respond to demand management instruments? Could higher gasoline prices or lower metro fares (or changes in travel time) help reduce congestion or pollution? The authors use cross-sectional variation from an urban travel survey to study the substitutability in...

The Brazilian sugar and ethanol story goes like this: direct market intervention overrides market forces. Markets undergo dramatic change. Intervention establishes vested interests. Rent-seeking blocks adjustment to market change. Economic objectives become blurred behind political objectives....

Using data from the U.S. Census Bureau, the authors have developed comprehensive estimates of pollution abatement costs by industry sector for several major air pollutants. Their results provide conservative benchmarks for benefit-cost analysis of pollution control strategies in developing...

Charging for social marginal costs is efficient regardless of price elasticities, but the importance of getting prices"right"is greater the more manageable, or elastic, the demand. In efficient pollution control programs, options to make cars cleaner are combined optimally with demand...

Sound public policy addresses externalities directly, when possible. Air pollution is best alleviated by policy instruments that internalize the social cost of pollution, making it attractive to reduce emissions. One such instrument might be a tax levied on individual emissions, if they are...

The author presents a simple empirical framework for estimating the level of world fossil fuel subsidies and analyzing their implications for carbon dioxide emissions. The author extends Larsen and Shah (1992) by applying a simple model with interfuel substitution, using a more detailed sectoral...

Some economists have urged reliance on fuel taxes and other fiscal incentives to reduce air pollution in semi-industrialized countries. They argue that policies that act on relative prices are easier to enforce than those based on emission monitoring, create less misallocation of resources, and...

Without continuous monitoring of emissions, a pollution control agency needs to evaluate abatement options itself. Apart from making activities cleaner, it should also stimulate reductions in the level of activity in polluting sectors. The author develops an analytical framework to show that a...