Environmental and Resource Economics: A Canadian Retrospective

B. Copeland and M. Scott Taylor

Canadian Journal of Economics, Forthcoming

This paper gives a brief overview of contributions to environmental and resource economics in Canada. We concentrate on work from the past 25 years, but we also highlight earlier pathbreaking work. Canadians have made fundamental contributions to many aspects of the field, especially in resource economics, non-market valuation, and international environmental economics. Our focus is on academic work by scholars in Canada,1 but we put this in the context of the development of the field internationally. Given space constraints, we cannot be comprehensive and so the review discusses big picture trends, along with a selective overview of leading contributions. We also had to limit the scope of the article and so do not cover energy economics and mainly consider fisheries when discussing renewable resource economics.

Trade and the Environment: New Methods, Measurements, and Results*

J. Cherniwchan, B. Copeland, and M. Scott Taylor

The Annual Review of Economics, Vol. 9, August 2017, 59-85.

We review recent research linking international trade to the environment, with a focus on new results and methods. The review is given structure by a novel decomposition linking changes in emissions to changes in productive activity at the plant, firm, industry, and national levels. While some new results have emerged from the application of a Melitz-style approach to trade and the environment, its full potential has not yet been exploited. We discuss existing empirical and theoretical work, introduce three new hypotheses, and suggest paths for future researchers to follow.

*I am pleased to provide you complimentary one-time access to my Annual Reviews article as a PDF file, for your own personal use. Any further/multiple distribution, publication, or commercial usage of this copyrighted material requires submission of a permission request addressed to the Copyright Clearance Center (http://www.copyright.com/).

Unmasking the Pollution Haven Effect

A. Levinson and M. Scott Taylor

International Economic Review, Vol. 49, No. 1, February 2008, 223-254.

We use theory and empirics to examine the effect of environmental regulations on trade flows. A simple model demonstrates how unobserved heterogeneity, endogeneity, and aggregation issues bias standard measurements of this relationship. A reduced-form estimate of the model, using data on U.S. regulations and trade with Canada and Mexico for 130 manufacturing industries from 1977 to 1986, indicates that industries whose abatement costs increased most experienced the largest increases in net imports. For the average industry, the change in net imports we ascribe to regulatory costs amounting to 10% of the total increase in trade volume over the period.

Free Trade and Global Warming: A Trade Theory View of the Kyoto Protocol

B. Copeland and M. Scott Taylor

Journal of Environmental Economics and Management, Vol. 49, No. 2, March 2005, 205-234.


This paper demonstrates how several important results in environmental economics, true under mild conditions in closed economies, are false or need serious amendment in a world with international trade in goods. Since the results we highlight have framed much of the ongoing discussion and research on the Kyoto protocol, our viewpoint from trade theory suggests a re-examination may be in order. Specifically, we demonstrate that in an open trading world, but not in a closed economy setting:(1) unilateral emission reductions by the rich North can create self-interested emission reductions by the unconstrained poor South; (2) simple rules for allocating emission reductions across countries (such as uniform reductions) may well be efficient even if international trade in emission permits is not allowed; and (3) when international emission permit trade does occur it may make both participants in the trade worse off and increase global emissions.

Unbundling the Pollution Haven Hypothesis

M. Scott Taylor

Advances in Economic Analysis and Policy, Vol. 4, No. 2, February 2004, 1-26.

The “Pollution Haven Hypothesis” (PHH) is one of the most hotly debated predictions in all of international economics. This paper explains the theory behind the PHH by dividing the hypothesis into a series of logical steps linking assumptions on exogenous country characteristics to predictions on trade flows and pollution levels. I then discuss recent theoretical and empirical contributions investigating the PHH to show how each contribution either questions the logical inevitability, or the empirical significance of one or more steps in the pollution haven chain of logic. Suggestions for future research are also provided.

Trade and the Environment: Theory and Evidence

B. Copeland, and M. Scott Taylor

Princeton University Press, eds. Gene M. Grossman and Oliver Gourinchas, Princeton, July 2003.

Is Free Trade Good for the Environment?

W. Antweiler, B. Copeland, and M. Scott Taylor

American Economic Review, Vol. 91, No. 4, September 2001, 877-908.


This paper investigates how openness to international goods markets affects pollution concentrations. We develop a theoretical model to divide trade's impact on pollution into scale, technique, and composition effects and then examine this theory using data on sulfur dioxide concentrations. We find international trade creates relatively small changes in pollution concentrations when it alters the composition of national output. Estimates of the trade-induced technique and scale effects imply a net reduction in pollution from these sources. Combining our estimates of all three effects yields a somewhat surprising conclusion: freer trade appears to be good for the environment.

Trade and Transboundary Pollution

B. Copeland and M. Scott Taylor

American Economic Review, Vol. 85, No. 4, September 1995, 716-737.

This paper examines how national income and trading opportunities interact to determine the level and incidence of world pollution. The authors find that free trade raises world pollution if incomes differ substantially across countries; if trade equalizes factor prices, human-capital-abundant countries lose from trade, while human-capital-scarce countries gain; international trade in pollution permits can lower world pollution even when governments' supply of permits is unrestricted; international income transfers may not affect world pollution or welfare; and attempts to manipulate the terms of trade with pollution policy leave world pollution unaffected.

Trade and the Environment: A Partial Synthesis

B. Copeland and M. Scott Taylor

American Journal of Agricultural Economics, Vol. 77, No. 3, August 1995, 765-771.

There is an emerging consensus in the environmentalist community opposing free trade. While some economics view this as simple another outlet for protectionism, recent work has begun to move beyond the rhetoric to probe more deeply into the theoretical and empirical relationships between international trade and environmental quality. The purpose of the present paper is twofold. We first integrate some of the existing literature by using the simple concepts of general equilibrium pollution supply and demand. Our survey of the trade and environment literature is more analytical, but admittedly less comprehensive, than those of Dean; and Beghin, Roland-Holst, and van der Mensbrugghe. In conducting the survey we find that under a wide variety of assumptions about the institutional response to pollution, the theoretical models predict that (all else equal), pollution-intensive industries tend to migrate to countries with weaker pollution regulations.

North-South Trade and the Environment

B. Copeland and M. Scott Taylor

Quarterly Journal of Economics, Vol. 109, No. 3, August 1994, 755-787.

A simple static model of North-South trade is developed to examine linkages between national income, pollution, and international trade. Two countries produce a continuum of goods, each differing in pollution intensity. We show that the higher income country chooses stronger environmental protection, and specializes in relatively clean goods. By isolating the scale, composition, and technique effects of international trade on pollution, we show that free trade increases world pollution, an increase in the rich North's production possibilities increases pollution, while similar growth in the poor. South lowers pollution, and unilateral transfers from North to South reduce worldwide pollution. 

International Trade and the Environment: A Framework for Analysis

B. Copeland and M. Scott Taylor

The National Bureau of Economic Research, Working Paper No: 8540, January 2001.

This paper sets out a general equilibrium pollution and trade model to provide a framework for examination of the trade and environment debate. The model contains as special cases a canonical pollution haven model as well as the standard Heckscher-Ohlin-Samuelson factor endowments model. We draw quite heavily from trade theory, but develop a simple pollution demand and supply system featuring marginal abatement cost and marginal damage schedules familiar to environmental economists. We have intentionally kept the model simple to facilitate extensions examining the environmental consequences of growth, the impact of trade liberalization, and strategic interaction between countries.

A Simple Model of Trade, Capital Mobility, and the Environment

B. Copeland and M. Scott Taylor

The National Bureau of Economic Research, Working Paper No: 5898, January 1997.

This paper examines the interaction between relative factor abundance and income-induced policy differences in determining the pattern of trade and the effect of trade liberalization on pollution. If a rich and capital abundant North trades with a poor and labor abundant South, then free trade lowers world pollution. Trade shifts the production of pollution intensive industries to the capital abundant North despite its stricter pollution regulations. Pollution levels rise in the North while those in the South fall. These results can be reversed however if the North-South income gap is "too large," in this case, the pattern of trade is driven by income-induced pollution policy differences across countries. Capital mobility may raise or lower world pollution depending on the pattern of trade.