摘要：Technology creates changes in agriculture that all segments of the agricultural community need to consider to anticipate the resulting impacts. Objectives of the research were to project the size and number of farming operations in eastern Washington and to examine the implications for farm size of four-wheeldrive tractor technology. Based on Markov chain projections of farm size, enlargements will occur in farms over 1,000 acres. Use of four-wheel-drive tractors will pressure farming operations larger than 2,000 acres to enlarge further.
关键词：Tractor technology;economies of farm size;Markov chains
