New Directions in Productivity Measurement and Efficiency Analysis
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New Directions in Productivity Measurement and Efficiency Analysis

Counting the Environment and Natural Resources

Edited by Tihomir Ancev, M. A.S. Azad and Francesc Hernández-Sancho

This book explores novel research perspectives on the intersection of environmental/natural resource economics and productivity analysis, emphasizing the link between productivity and efficiency measurement and environmental impacts. The purpose of the book is to present new approaches and methods for measuring environmentally adjusted productivity and efficiency, and for incorporating natural resources in standard national accounting practices. These methods are applicable in many contexts, including air and water pollution, climate change, green accounting, and environmental regulation
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Chapter 8: Climate adjusted productivity on Australian cropping farms

Neal Hughes and Kenton Lawson

Abstract

This chapter presents a method of controlling for climate effects on firm-level productivity measures. The approach involves applying non-parametric (machine learning) regression methods to large spatio-temporal data sets where firm productivity is observed for many time periods and locations. This method is applied to the Australian broadacre cropping industry, using Australian Bureau of Agricultural and Resource Economics and Sciences (ABARES) farm survey data for the period 1977–78 to 2014–15 and climate data from the Australian Water Availability Project (AWAP). The study demonstrates the importance of controlling for climate variability and change when measuring productivity in agriculture, particularly on cropping farms. The results show a significant deterioration in climate conditions for cropping over the last 15 to 20 years, particularly in southern Australia. After the effects of climate have been removed a clear picture of underlying productivity trends emerges, with a slowdown in productivity growth after 1993–94 and a rebound since 2007–08.

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