Taking Time for the Environment: On Timing and the Role of Delays in Environmental and Resource Economics

Ecosystem transformation and climate change evolve over long time scales. The effects of the economic decisions on the natural environment are also of a long-run character because they relate to investment decisions and capital stocks. At the same time, the economy is short-sighted and subject to different kinds of market failures. The time it takes to notice the changes and adequately address the associated problems affects the dynamics and inertia of the process. We discuss some recent contributions and new research questions that deal with time and timing in environmental and resource economics.     

How much are electric vehicles driven?

The prospect for electric vehicles as a climate change solution hinges on their ability to reduce gasoline consumption. But this depends on how many miles electric vehicles are driven and on how many miles would have otherwise been driven in gasoline-powered vehicles. Using newly-available U.S. nationally representative data, this paper finds that electric vehicles are driven considerably fewer miles per year on average than gasoline-powered vehicles. The difference is highly statistically significant and holds for both all-electric and plug-in hybrid vehicles, for both single- and multiple-vehicle households, and both inside and outside California. The paper discusses potential explanations and policy implications. Overall, the evidence suggests that today’s electric vehicles imply smaller environmental benefits than previously believed.     

Within Occupation Wage Dispersion and the Task Content of Jobs

Most analyses linking task content of jobs to income inequality focus on the effects between occupations, e.g. the growing dispersion between lousy and lovely jobs. The theory, meanwhile, provides insights on links between task content of jobs and inequality also within occupations: models predict compression of wages in more routine jobs, that is those where capital is a direct substitute for labour, and an increase in dispersion in jobs where capital and labour are complements. I document that within occupations dispersion of wages is empirically relevant, as it represents around half of total wage inequality across Europe. I then link wage inequality to the task content of jobs. Using matched employee–employer data from Europe for the period 2002–14, I show that occupations where tasks complement newer technologies exhibit higher wage dispersion. This relationship is robust to adjusting for a variety of confounding and mitigating channels.     

Difference‐in‐differences when the treatment status is observed in only one period

This paper considers the difference‐in‐differences (DID) method when the data come from repeated cross‐sections and the treatment status is observed either before or after the implementation of a program. We propose a new method that point‐identifies the average treatment effect on the treated (ATT) via a DID method when there is at least one proxy variable for the latent treatment. Key assumptions are the stationarity of the propensity score conditional on the proxy and an exclusion restriction that the proxy must satisfy with respect to the change in average outcomes over time conditional on the true treatment status. We propose a generalized method of moments estimator for the ATT and we show that the associated overidentification test can be used to test our key assumptions. The method is used to evaluate JUNTOS, a Peruvian conditional cash transfer program. We find that the program significantly increased the demand for health inputs among children and women of reproductive age.     

The curious case of Panama

A small country in Central America offers some interesting ideas on how the insurance industry can handle the COVID‐19 pandemic and crisis.     

Pricing Political Rallies

Why are political rallies free to attend? Fundraising is a central campaign activity and a perennial correlate of political victory. We argue that politicians set a zero price for rallies in order to reap a non‐pecuniary benefit: political support. An ‘allocation by waiting’ scheme selects those attendees with a lower opportunity cost of time relative to a standard ‘allocation by price’ scheme. Transactions costs mitigate Coasean bargaining by removing the secondary market, thereby altering the composition of the average rally crowd. This mechanism allows politicians to facilitate exchange with ‘general interests’: citizens who do not engage in rent seeking due to collective action costs but still stand to gain from redistributive policies.     

Firm and Group Dynamics in the Small and Medium Enterprise Sector in Indonesia

This paper discusses the role of clusters and subcontracting as factors in the evolution of small and medium firms in Indonesia during the last quarter century. It is argued that a number of such firms have become successful exporters of rattan furniture, wood furniture and garments on the strength of subcontracting relationships with foreign investors and buyers as well as agglomeration economies achieved by clustering in selected locations. Examples are provided to show that clustered enterprises are more likely to be in the exports business and to adopt product and process innovations as compared to more dispersed firms. Public policy support for fostering subcontracting links and cluster formation is also discussed.