Table of Contents

Handbook on Climate Change and Agriculture

Handbook on Climate Change and Agriculture

Elgar original reference

Edited by Ariel Dinar and Robert Mendelsohn

This book explores the interaction between climate change and the agriculture sector. Agriculture is essential to the livelihood of people and nations, especially in the developing world; therefore, any impact on it will have significant economic, social, and political ramifications. Scholars from around the world and from various fields have been brought together to explore this important topic.

Chapter 8: The Impact of Climate Change on US Agriculture: A Repeated Cross-Sectional Ricardian Analysis

Emanuele Massetti and Robert Mendelsohn

Subjects: development studies, agricultural economics, economics and finance, agricultural economics, environmental economics, environment, agricultural economics, climate change, environmental economics


Emanuele Massetti and Robert Mendelsohn INTRODUCTION Controlled laboratory and field experiments suggest a hill-shaped relationship between yield and temperature (see Reilly et al., 1996, Mendelsohn and Dinar, 2009). For each crop there is an ideal temperature and precipitation range. Climate that is either warmer or cooler than this optimal range leads to lower yields. Across crops there is a similar relationship that involves both yields and the profitability of each crop. It follows that one should expect a hill-shaped relationship between temperature and gross revenues as well. However, farmers can choose outputs to adapt to different temperatures. They can switch crops, switch livestock, and/or move from crops to livestock. They can also change inputs in response to temperature such as adjusting fertilizer, irrigation and pesticides. Finally, they can adjust management by altering planting and harvest dates or tilling practices as a climate adaptation. All of these choices lead to a less concave net revenue–temperature function than the pure yield–temperature relationship would suggest. By altering inputs, outputs and management, farmers can make their choice set less concave by moving to more advantageous combinations of outputs as well as inputs. A less concave response function implies lower sensitivity to climate change. Agro-economic models consequently overestimate the welfare impact of climate change because they focus on the relationship between climate and yields, holding farmer choices constant. They neglect the possibility that farmers will react to a changing environment by altering their behavior. They mis-estimate the general relationship between net revenue and...

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