this paper examines the effects of agricultural land productivity improvement on the economy of iran assuming that the domestic and international trade liberalizations will open up the opportunities to expand market access. a 25-sector computable general equi-librium model was developed to simulate the effects of this policy. the simulation results indicate that enhancing agricultural land prod...

1. Overview This report identifies and collates studies involving longitudinal social research in Ethiopia. There are a limited number of studies which fall under this classification. Much of the longitudinal research in Ethiopia focuses on health or agricultural sectors, rather than social issues. Some health studies are included in this report as they involve social dimensions or behavioural ...

This empirical study seeks to reconcile evolutionary economic theories on how naturally heterogeneous technologies tend to emerge over time along technological trajectories with the predictions of theory that organizations in different sectors of the agricultural R&D economy should specialize in inventions with different qualitative characteristics arising at different phases in the evolution o...

Securing a livelihood in rural Africa is a distinctly complex process involving interactions between the agricultural and non-agricultural sectors and between urban and rural activities. In addition to subsistence agriculture, farmers are often engaged in non-agricultural activities that provide important income sources in both rural and urban contexts. Although migratory labor is recognized as...

Fifty years ago, Punjab embarked on its famous Green Revolution, leading the rest of India in that innovation, and becoming the country's breadbasket. Now its economy and society are struggling by relative, and sometimes even absolute, measures. Using the original Green Revolution as a benchmark, this paper discusses five areas of challenge and promise for a new round of agricultural innovation...

E nergy is one of the main and essential factors in economic growth. Electricity as one of the most important resources of energy supply for economic sectors on one hand, and as an index of welfare, on the other hand, is one of the economic development benchmarks. The growth of GDP will increase the demand for energy resources, including electricity. Hence, policymakers should pay at...

This paper investigates the growth experience of one country in detail in order to enhance our understanding of important factors that affect economic growth. Using a two-sector model, we identify the low productivity growth in the agricultural sector as the main reason for the divergence of income per capita between Turkey and its peer countries between 1968 and 2005. An extended model that in...

Under price ceilings and quality floors for agricultural inputs in cash crop sectors in developing countries where credit markets are weak, imperfect information on the ability of farmers to pay for their inputs at the end of the cropping season may lead the decentralized production of those inputs by risk averse private input providers to be inefficient. A coordinating agency and/or subsidies ...