THE EFFECTS OF RESEARCH ON WHEAT YIELDS AND YIELD VARIANCES

Senhui He, Fred C. White and Stanley M. Fletcher

No 35155, 2003 Annual Meeting, February 1-5, 2003, Mobile, Alabama from Southern Agricultural Economics Association

Abstract: This paper investigates the impacts of research investment on wheat production. A two-way error component random effect model was estimated using panel data to examine the effects of research investment on mean yield and yield variance. Results show that, for the time period between 1974 and 1995, research investment enhanced yield stability but had no significant impact on mean yield. Key words: yield, yield variance, research investment.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
Pages: 13
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:ags:saeatm:35155

DOI: 10.22004/ag.econ.35155

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