Hassler, John, Krusell, Per and Olovsson, Conny
(2015)
Energy-saving technical change.
CFM discussion paper series (CFM-DP2015-29).
Centre For Macroeconomics, London, UK.
Abstract
We estimate an aggregate production function with constant elasticity of substitution between energy and a capital/labor composite using U.S. data. The implied measure of energysaving technical change appears to respond strongly to the oilprice shocks in the 1970s and has a negative medium-run correlation with capital/labor-saving technical change. Our findings are suggestive of a model of directed technical change, with low short-run substitutability between energy and capital/labor but significant substitutability over longer periods through technical change. We construct such a model, calibrate it based on the historical data, and use it to discuss possibilities for the future
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