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ACADEMIC PAPERSCHANGING THE DISCOUNT RATE BY ADJUSTING THE PURE RATE OF TIME PREFERENCE
One of the most influential parameters in Cost-Benefit Analysis is the discount rate. It is common in policy discussions to decompose it using the Ramsey formula into the pure rate of time preference ("rho") and an additive part that adjusts for the effect of consumption growth, then to consider different discount rates based on different assumptions about the magnitude of rho. In an new paper coauthored with Jamie Lee and Thanasis Stengos we show that the two don't vary on a 1:1 basis, that is, the relationship is not linearly additive as is commonly assumed.
We show that as rho changes, the discount rate changes by slightly less than rho, although in the long run steady state the derivative converges on 1 from below. We estimate the relationship on US data and show that it is about 0.9 currently. We also show that the value of rho after 1980 is about 1.6. This analysis has results for debates like the one sparked by the Stern Review on the Economics of Climate Change. Stern argued for an extremely low discount rate based on assuming rho is 0. GLOBAL ENERGY SUBSIDIES: AN ANALYTICAL TAXONOMY
There was a debate earlier this year in the pages of the Financial Times regarding the size and extent of global energy subsidies. It was suggested to me that I send a letter in myself, but upon looking at the issue I found it too large and complex to be reducible to a letter. Different authors and institutions have estimated subsidy magnitudes that vary by orders of magnitude even within countries. Why do the numbers vary so much? The reason is that the definitions being applied vary widely, and some of the definitions make no sense. In this paper:
UPDATE: The paper has been published in the journal Energy Policy:
BROWNFIELDS REMEDIATION IN ONTARIO: HOW TO STREAMLINE THE SYSTEM
Back in January 2017 I published a study through the Frontier Centre for Public Policy on Brownfields Remediation in Ontario. It was based on a series of interviews with experts working in the field of site remediation and construction. The system has developed some acute bottlenecks since reforms were implement in 2011, leading to escalating costs and long delays in construction approvals. With the election of a new growth-oriented government in Ontario, I thought it would be timely to draw attention to the paper once again:
In addition to explaining the current system for obtaining a Record of Site Conditions we identify where and why the bottlenecks are forming and we make a set of recommendations for speeding up the system without compromising the intent of the regulations. TRADE LIBERALIZATION AND POLLUTION HAVENS Bin Hu and I published a study looking at whether the distribution of consumption-generated pollution changes in a different way than production-generated pollution between rich and poor countries under trade liberalization. Previous work has focused on production-generated ("smokestack") emissions rather than consumption-generated ("tailpipe") emissions, and finds pollution intensity tends to rise in rich countries relative to poor countries after trade liberalization. We present a theoretical model in which the opposite pattern is predicted for tailpipe emissions, and we find empirical support for this in an international panel of data on carbon monoxide emissions.
Contact me if you want reprints of any of these. For my textbook go here.
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OTHERTHE PRINCIPLE OF TARGETING
I published a brief essay through the Fraser Institute called
ENVIRONMENT AND INEQUALITY:
I made an invited presentation to the CIGI conference "False Dichotomies" (Nov 16-17 2012) in a session on the theme of Environment and Inequality. My argument was that there is a kind of Environmental Kuznets Curve connecting social equity and the stringency of environmental policy. In heavily polluted economies, increased stringency and enforcement of regulation generates a mix of benefits and costs that benefit overall equity. But in modern, high income economies with low pollution levels, like Canada and the US, environmental policy overkill is becoming a means by which wealthy urban households derive warm glow benefits while passing the costs disproportionately onto low-income and rural households. My presentation slides are here. The entire session can be viewed online here. Peter Victor speaks first and then I come on at about the 14:00 mark. |