Agricultural Outputs
PERSISTENCE PAYS US AGRICULTURAL PRODUCTIVITY GROWTH AND THE BENEFITS FROM PUBLIC R&D SPENDING(2010)
摘要
Over the past 100 years and more, U.S. agricultural production grew rapidly and the composition and location of production
changed markedly, too. Different measures of agricultural output give different perspectives on these changes. This chapter
provides a detailed assessment of the temporal and spatial patterns in the quantity and value of U.S. agricultural production
and its composition. The chapter concludes with a presentation of Fisher indexes of output quantities. These indexes are used
with the corresponding indexes of input quantities from Chapter 3 to compute the productivity indexes for 1949–2002 that are
presented in Chapter 5 and used in the econometric models in subsequent chapters.
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