Using a dynamic gravity equation, we show that the national product differentiation model explains food and agricultural trade more properly, while the product differentiation model is more appropriate to explain large-scale manufacturing trade. In this context, our result is not consistent with...

Traditional recommendations for building sustainable competitive advantages revolve around differentiating a product from the competition along attributes that are important and relevant to customers. However, strategic approaches based on such notions do not represent viable options for...

In this study an import demand model (differential production model) is presented that is used in estimating the demand for source and product differentiated goods simultaneously. Unlike the traditional import demand models, this model can account for changes in relative group expenditures....

This study investigates whether importers of U.S. wheat form an integrated market or a series of segmented markets. Two market integration tests are applied: one based on equilibrium price relationships and one based on disequilibrium price relationships. With the exception of a few importers,...

Intra-industry trade in agri-food products between Hungary and the EU is shown to be low and dominated by vertically rather than horizontally differentiated products, suggesting higher economic adjustment costs. Following recent empirical studies, we then test econometrically for the...

A demand system model differentiating goods by product form and origin is developed to examine the impact of eliminating U.S. tariffs on orange-juice prices. An empirical analysis suggests a range of tariff impacts on prices depending on the degree of substitution between products. The model...

This paper analyzes the effects of varying appropriability or strength of IPRs for agricultural seeds. Farmers are modelled as heterogeneous producers, purchasing seed from an innovating monopolist in a vertical product differentiation framework. The effects of IPRs on innovation are endogenized...

In this study an import demand model (differential production model) is presented that is used in estimating the demand for source and product differentiated goods simultaneously. Unlike the traditional import demand models, this model can account for changes in relative group expenditures....

Japan’s agriculture has been inward oriented, protected by trade barriers from foreign competition. Even though the share of Japan’s food consumption provided by Japanese production has gradually fallen, Japan’s farm sector remains the second-largest among the countries negotiating the...

We propose a two-stage estimation procedure to identify the effects of time-invariant regressors in a dynamic version of the Hausman-Taylor model. We first estimate the coefficients of the time-varying regressors and subsequently regress the first-stage residuals on the time-invariant regressors...