Trade, Technology, and Agricultural Productivity
研究贸易如何通过影响投入品成本和技术采用推动现代农业发展，发现1980年代以来农业投入品贸易成本下降和生产力增长促进了从传统劳动密集型向现代投入密集型技术的转变，并对全球生产力和福利产生重要影响。
We examine the contribution of trade to the rise of modern agriculture, taking into account interactions between trade, input requirements, and technology adoption. We develop and estimate a new multicountry general equilibrium model that incorporates producers’ choices of which crops to produce and with which technologies at the level of grid cells covering the earth’s surface. We find that trade cost reductions in agricultural inputs and the international transmission of productivity growth in the agricultural input sector since the 1980s induced large shifts from traditional, labor-intensive technologies to modern, input-intensive ones, with important global and distributional implications for productivity and welfare.