This paper explores the role of structural change in systems of demand equations. Specifically, we adapt the time—varying regression framework of Lin and Teräsvirta (1994), which in turn is related to the dynamic smooth transition models introduced by Teräsvirta (1994). Unlike previous...

In the past two decades, the profession has expended valuable resources testing structural change in meat demand with mixed results. Overlooked to date is a fundamental methodological problem that transcends all of the methods of testing for structural change. In this study, a formal logic...

We used alternative specifications of the Almost Ideal Demand System to estimate the aggregate demand for beef, pork, chicken, and other consumption goods and their elasticities in Brazil. We detected the need for using time trend variables in models’ equations so that an upward trend for each...

We use alternative specifications of the Almost Ideal Demand System (AIDS) to estimate the aggregate demand in Brazil for beef, pork, chicken, other consumption goods, and their elasticities. We detect the need for using time trend variables in models’ equations so that we found an upward...

In 2012, the media paid extra attention to lean finely textured beef (LFTB), an inexpensive lean beef product extracted from low-valued fatty trim. The media’s negative portrayal of LFTB as an unnecessary and unsavory additive to ground beef products corresponded with a spike in reports over a...

This study uses the inverse almost ideal demand system (IAIDS) to estimate demand flexibilities for beef, small ruminant (sheep and goat) meat, pork and poultry in Tanzania. Own uncompensated price flexibilities were less than one in absolute value, implying that both direct and indirect induced...

Purpose The purpose of this paper is to investigate the implications of the China’s rising meat demand and industrialization of the livestock sector for the vegetable oil market. Design/methodology/approach An equilibrium displacement model is constructed to analyze the interactions between...

This paper shows that a power utility specification of preferences over total expenditure (ie. CRRA preferences) implies that intratemporal demands are in the PIGL/PIGLOG class. This class generates (at most) rank two demand systems and we can test the validity of power utility on cross-section...

This paper develops a model for demand-system estimations, whose coefficients are own-price Marshallian elasticities and elasticities of substitution between goods. The model satisfies the homogeneity, symmetry and, eventually, adding-up restrictions implied by consumer theory, and is primarily...

This paper uses data on consumption expenditure and price levels from the European Comparison Project (ECP) 1996 for the analysis of demand structures in a cross-section of 52 countries. The paper describes the patterns of consumption expenditures, price levels and relative prices for four...