Recently gravity trade models are applied to disaggregated trade data. Here many zeros arecharacteristic. In the presence of excess zeros usual Poisson Pseudo Maximum Likelihood(PPML) is still consistent, the variance covariance matrix however is invalid. Correcteconomic interpretation however...

This dissertation studies models for locating facilities in time varying demandenvironments. We describe the characteristics of the time varying demand that motivatethe analysis of our location models in terms of total demand and the changein value and location of the demand of each customer....

Introduces applications of microeconomic theory to planning problems including urban form and structure, environmental controls, zoning and property rights, and income inequality and poverty. From the course home page: Course Description Planning Economics (11.202) is a course that runs for the...

Planning Economics (11.202) is a course that runs for the last one-third of a semester and covers economics topics of particular interest to city planning students: location theory, the interplay between externalities and zoning, international trade and globalization, and housing finance. Few...

In this paper we develop a spatial Cournot trade model with two unequally sized countries, using the geographical interpretation of the Hotelling line. We analyze the trade and welfare effects of international trade between these two countries. The welfare analysis indicates that in this...

In this paper we develop a theoretical model of competition among marketing cooperatives (co-ops) in a spatial market setting assuming uniform delivered pricing and Löschian conduct. The model is an extension to Alvarez et al.’s (2000) spatial competition model for investorowned firms (IOF)....

Agricultural markets often feature significant transport costs and spatially distributed production and processing which causes spatial imperfect competition. Spatial economics considers the firms’ decisions regarding location and spatial price strategy separately, usually on the demand side,...

Given that existing food eco-labels are still not well defined in consumers' experience, there is potential for new labels to generate more confusion. Consumers incur fixed costs to learn about a label's meaning. Market shares for existing certifications may be eroded by perceptions that new...

This paper extends the interval Hotelling model with quadratic transport costs to the n−player case. For a large set of locations including potential equilibrium configurations, we show for n 2 that firms neither maximize differentiation - as in the duopoly model - nor minimize...