Flue cured tobacco has been an important crop for theZimbabwean economy historically in terms of foreign currencyearnings and employment creation. Between 1980 and 2000, thereis a general increase in tobacco output, followed by a sharpdecline from 2001 up to 2008 and then output starts to...

The paper considers the relationship between trust and governance structure from a Transaction Cost Economicsperspective. The role of trust in the coordinating decisions is variously conceptualized according to the theoreticalview adopted by the scholars. The present study adopt the...

When a traceability system takes place, either when mandatory or voluntary, many questions arise that need to beaddressed and answered. One of the firsts concerns whether it introduces new costs with no gain in efficiency or,on the contrary, the system efficiency increases lowering costs and, as...

The main purpose of this research is to evaluate the influence of two distinct programs over the coffee consumption in Brazil. Thefirst one is the implementation of “Plano Real” and it’s consequences in terms of monetary stabilization and income growing. Thesecond refers to a program that...

This paper illustrates the opportunities of incorporating more advanced functional forms into multi-country trade policy models. It suggests the use of flexible forms such as the Symmetric Generalized McFadden Function (SGMF) or the Normalized Quadratic-Quadratic Expenditure System (NQQES)....

Standard spatial equilibrium activity analysis models, as developed by Takayama and Judge (1971), are based on linear supply and demand functions and fixed input-output coefficients. Such models are suitable for multiple market level trading systems where the fixed input-output coefficients are...

The comparative productivity of inputs is often the focus of applied studies of production. For example, one might wish to compare the marginal product of water in irrigation districts to provide guidelines for capital investment in new water projects or to assist in water allocation decisions....

The primary objective in this paper is to 'promote' the use of equilibrium displacement modelling, or comparative static analyses of general function models, as a research tool in agricultural price and policy analyses. This is by no means a new tool, but it does seem to be used much less in...

Computable General Equilibrium (CGE) models have been widely used for quantitative analysis of global economic issues. However, CGE models are frequently criticized for resting on weak empirical foundations. This paper builds on recent work in macro-econometric estimation, developing an approach...

This paper compares two estimation methods of a three-stage least squares (3SLS) system of equations, corrected for spatial autocorrelation. The modeling approach is novel in that it is an extension of Anselin's (1988) seemingly unrelated regression (SUR) space-time spatial error model for panel...