Posts by Jonathan Adler

The New York Times tries to provide some perspective to the renewed debate over the economic effect of environmental regulation, and the effect of regulation on jobs in particular.  The story was prompted by President Obama’s decision to ask Environmental Protection Agency Administrator Lisa Jackson to withdraw a proposed revision of the National Ambient Air Quality Standard for ozone.  Business groups and many local government officials cheered the move; environmentalist groups were dismayed.

Part of the problem in evaluating the costs of regulation is that there have been few systematic studies of such costs after regulations are imposed.

“Regulations are put on the books and largely stay there unexamined,” said Michael Greenstone, an economist at the Massachusetts Institute of Technology. “This is part of the reason that these debates about regulations have a Groundhog’s Day quality to them.”

Mr. Greenstone has conducted one of the few studies that actually measure job losses related to environmental rules. In researching the amendments to the Clean Air Act that affected polluting plants from 1972 and 1987, he found that those companies lost almost 600,000 jobs compared with what would have happened without the regulations.

But Mr. Greenstone has also conducted research showing that clean air regulations have reduced infant mortality and increased housing prices, and indeed many economists argue that job losses should not be considered in isolation. They say the costs of regulations are dwarfed by the gains in lengthened lives, reduced hospitalizations and other health benefits, and by economic gains like the improvement to the real estate market.

The NYT story did not provide links to Prof. Greenstone’s research, so I added them above. For those interested in the subject, a third paper by Greenstone looks at the extent to which air quality improvements can be attributed to the federal Clean Air Act. Prof. Greenstone is, among other things, the former chief economist of President Obama’s Council of Economic Advisers.

The story closes with a quote from current Obama Administration “regulatory czar” Cass Sunstein, who’s in leave from the Harvard Law School.

“My view is that the Republican claim that ‘job-killing regulation’ is a redundancy is as ridiculous as the left-wing view that ‘job-killing regulation’ is an oxymoron,” said Cass Sunstein, head of the White House Office of Information and Regulatory Affairs. “Both are silly political claims that have no place in a serious discussion.”

I agree with Professor Sunstein that the debate over whether regulation kills or creates jobs is not very productive. As a general matter, when a firm is forced to spend money complying with environmental regulations, such expenditures are likely to take the place of more productive investments.  Some of these expenditures may benefit other firms, such as those which sell products or services that assist with compliance, but are still unlikely to offset the negative effects of the initial diversion.  As a consequence, whether or not there are net economic benefits from environmental regulation will usually depend on the magnitude and nature of the other benefits the regulation provides — benefits that may or may not translate into job creation. Even if an environmental regulation generates net economic benefits, this does not necessarily translate into increased employment.  But whatever the effect of regulation on jobs, and even assuming the effect could be predicted with any accuracy, this is only one factor to be weighed when considering the desirability of regulation.

UPDATE: Matt Kahn notes that Clean Air Act regulation is not uniform across the nation, and insofar as regulations adopted pursuant to that law have reduced employment in some parts of the country, this has been offset by greater job creation elsewhere.  Indeed, this differential effect is one reason why the Clean Air Act was amended to impose greater restrictions on “cleaner” areas, as B. Peter Pashigian documented in a 1985 paper.

Yesterday afternoon I attended a lecture by Michael Greenstone, the 3M Professor of Environmental Economics and former chief economist of the Council of Economic Advisers during the first year of the Obama Administration, addressing the question, “Will Adaptation Save Us from Climate Change?” This lecture was the keynote address at a PERC workshop on “Human Adaptation to Climate Change” I’ve been attending this week.

Greenstone set the stage by observing that there are three possible approaches to the threat of climate change: 1) mitigation — reducing emissions of greenhouse gases; 2) adaptation — responding to climate change by seeking to ameliorate its negative effects, and 3) geoengineering — attempting to modify the climate in some way to offset the effects of increased greenhouse gas concentrations. The first of these is unlikely to happen in the near term, as the United States and other nations have shown themselves to be quite resistant to adopting meaningful mitigation measures. The third, whether or not it is viable or desirable, is generally not considered an acceptable approach geo-politically. As a consequence, he suggested, in all likelihood we will have to engage in some degree of adaptation to climate change.

In Greenstone’s view, the question is not whether or not human civilization will survive. It almost certainly will. Nonetheless, climate change could have substantial negative conseuqences. Rather, the relevant questions are how adaptation will occur over various time frames, the cost of such adaptation, and how effective adaptive responses will be. There is some research that has investigated the costs and potential of near-term response to some degree of climate change, but not nearly enough on longer term responses to climate change and its consequent environmental effects. Insights can be drawn, however, from other research that documents individual responses to changes in environmental conditions. For example, Greenstone co-authored a paper showing that some individuals respond to local air pollution levels by, among other things, purchasing medications that relieve some of the respiratory effects of higher pollution levels. Such adaptation may reduce the negative effects of pollution, but it still comes at a cost.

Adaptation takes many forms. Some adaptation to climate change would involve changes in infrastructure and the like, but much adaptation is likely to occur at the individual level. To take a simple example Greenstone used in his talk (based on this paper): on hotter days, people use more air conditioning. This matters because high temperatures tend to correlate with increased mortality. Therefore, were it not for air conditioning (and other means of adaptation), an increase in temperature would cause a greater increase in mortality. With air conditioning, the mortality increase is less, though energy use is greater.  This illustrates how individuals can alter their behavior to compensate for some of the consequences of higher temperatures, albeit at some cost.

In poorer, less-developed nations, such as India, on the other hand, the results are somewhat different. As Greenstone explained, compared to the United States, India has less adaptive capacity, so the mortality effects of warming would be greater – far greater. There is a lot of adaptive capacity in wealthy, industrialized nations, but not so much in poorer, less-developed nations. Moreover, the United States’ adaptive capacity has improved dramatically over the course of the past century. That is, the relationship between high temperatures and increased mortality in the United States has weakened over time as the nation has become wealthier and more technologically advanced, making it easier for individuals to adapt to temperature changes.

One possible response to Greenstone’s analysis is that if wealthier nations can adapt to climatic changes more readily than poorer nations, as much attention should be paid to making poorer nations wealthier – and improving their adaptive capacity – as to figuring out how to reduce global greenhouse gas emissions so as to mitigate the threat of climate change. From an economic standpoint, the costs of mitigation could be compared to the costs of adaptation, and if the costs of mitigation are greater, this would provide an economic justification for focusing on adaptation instead of mitigation – and some would certainly endorse this view. Indeed, many in developing nations embrace this view. In any event, even if mitigation policies are eventually adopted, there will need to be some degree of adaptation, some of which will be undertaken at the individual level.