Making Carbon Taxation a Generational Win Win
Please note the new time for this event - 4:30pm
Paper: The full working paper can be found here. This is joint work with Felix Kubler, Andrey Polbin, Jeffrey D. Sachs & Simon Scheidegger.
Biography: Laurence Kotlikoff is a professor of economics at Boston University, president of Economic Security Planning, and a New York Times best-selling author. His columns, articles, and books cover personal finance, generational policy, climate policy, inequality, tax reform, Social Security, banking, robotization, growth, and much more.
Abstract: Carbon taxation has been studied primarily in social planner or infinitely lived agent models, which trade off the welfare of future and current generations. Such frameworks obscure the potential for carbon taxation to produce a generational win-win. This paper develops a large- scale, dynamic 55-period, OLG model to calculate the carbon tax policy delivering the highest uniform welfare gain to all generations. The OLG framework, with its selfish generations, seems far more natural for studying climate damage. Our model features coal, oil, and gas, each extracted subject to increasing costs, a clean energy sector, technical and demographic change, and Nordhaus (2017)’s temperature/damage functions. Our model’s optimal uniform welfare increasing (UWI) carbon tax starts at $30 tax, rises annually at 1.5 percent and raises the welfare of all current and future generations by 0.73 percent on a consumption-equivalent basis. Sharing efficiency gains evenly requires, however, taxing future generations by as much as 8.1 percent and subsidizing early generations by as much as 1.2 percent of lifetime consumption. Without such redistribution (the Nordhaus “optimum”), the carbon tax constitutes a win-lose policy with current generations experiencing an up to 0.84 percent welfare loss and future generations experiencing an up to 7.54 percent welfare gain. With a six-times larger damage function, the optimal UWI initial carbon tax is $70, again rising annually at 1.5 percent. This policy raises all generations’ welfare by almost 5 percent. However, doing so requires levying taxes on and giving transfers to future and current generations ranging up to 50.1 percent and 10.3 percent of their lifetime consumption.
Date:
29 October 2019, 16:30
Venue:
Manor Road Building, Manor Road OX1 3UQ
Venue Details:
Seminar Room A
Speaker:
Prof. Laurence Kotlikoff (Boston University)
Organising department:
Institute for New Economic Thinking
Organiser:
Susan Mousley (INET Oxford Admin Team)
Organiser contact email address:
info@inet.ox.ac.uk
Host:
Linus Mattauch (University of Oxford)
Booking required?:
Required
Booking email:
info@inet.ox.ac.uk
Audience:
Members of the University only
Editor:
Susan Mousley
