This paper examines the supply-side determinants of international trade in crops that are intensive in genetically modified organisms (GMOs). The theoretical framework is a variant of the Heckscher–Ohlin model, which we estimate using cross-country data for 1995 and 2010 to examine soybeans, maize, and cotton trade. The data include measures of country land endowments, which we disaggregate into GMO and non-GMO components, as well as recently released measures of GMO regulations. Findings show land endowments are a primary source of comparative advantage in GMO intensive industries before and after the advent of GMOs. Further, an increase in a country's allocation of land to GMO crops has a positive effect on her net exports in GMO intensive industries. This positive effect occurs both across countries and time. Finally, a country's GMO regulations have a negligible effect as a supply-side determinant of comparative advantage. However, a country's decision about whether to adopt GMO technologies does matter to trade. These findings are robust with respect to a variety of considerations.
This paper proposes a framework for weighting priority for the multidimensional domains of slum development from the viewpoint of residents. The weights estimated by our framework can be interpreted as marginal utility, and multiplying satisfaction scores in each domain of development by these weights yields residents' utility from slum development. The proposed approach is carried out by accessing residents' needs for slum development in Mumbai, India, where more than 5.2 million residents live in slum areas. Using the dataset obtained from a questionnaire survey that we conducted with slum residents in March 2019, we estimate marginal utilities for 23 domains of slum development. The results show that (1) slum residents most wish to improve development projects about human capital (health and education), electricity, and drinking water, even if they have already been highly satisfied, (2) they feel the least satisfaction with public toilets and place high priority on projects involving public toilets, (3) the sewage system has low priority with low satisfaction, but this priority increases as slum residents become better off, (4) the projects on social development and protection are highly satisfied and generally ranked low in terms of marginal utilities, and (5) air pollution and working conditions are also concerns of slum residents, especially as these residents become better off. It is expected that the framework used in this paper can be used to extract the problems of urban development and to track the progress of development plans from the viewpoint of residents.
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