This paper estimates the role of agronomic inputs in cereal yield improvements and the consequences for countries' processes of structural change. The results suggest a clear role for fertilizer, modern seeds and water in boosting yields. We then test for respective empirical links between agricultural yields and economic growth, labor share in agriculture and non-agricultural value added per worker. The identification strategy includes a novel instrumental variable that exploits the unique economic geography of fertilizer production and transport costs to countries' agricultural heartlands. We estimate that a half ton increase in staple yields generates a 14 to 19 percent higher GDP per capita and a 4.6 to 5.6 percentage point lower labor share in agriculture five years later. The results suggest a strong role for agricultural productivity as a driver of structural change.
In spite of technological improvements in transport, landlocked developing countries continue to face structural challenges to accessing world markets. As a result, landlocked countries often lag behind their maritime neighbours in overall development and external trade. While the relatively poor performance of many landlocked countries can be attributed to distance from coast, this paper argues that several aspects of dependence on transit neighbours are also important. Four such types of dependence are discussed: dependence on neighbours' infrastructure; dependence on sound cross-border political relations; dependence on neighbours' peace and stability; and dependence on neighbours' administrative practices. These factors combine to yield different sets of challenges and priorities in each landlocked country. The paper concludes with a brief set of policy recommendations. A detailed appendix presents maps and regional overviews that outline key challenges facing the landlocked countries in each region.Globalization, Landlocked countries, Geography, Transit, Transport, Conflict, Markets, Economy,
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