In the study of a geographically aggregated market, the choice of a representative household leads to consider the
whole territory as a single, homogeneous one. However, there are reasons to believe that regional preference differences do
exist when there are important cultural and climatic differences among regions, and, historically, most...
This paper considers interdependence in seafood consumption exploiting data on consumer expenditures in
Spain, using dominance models. Interdependence is modeled by making parameters in both the participation and the
consumption equations dependent upon current consumption in the reference group of a particular consumer. The estimates
of a parsimonious model using...
This paper considers the modelling of aggregate price and quantity of aquaculture production in
the European countries since mid-80s. In general, the evolution of aquaculture production only
considers the evolution of total value and total weight. The heterogeneity of aquaculture
production is neglected. As a consequence, the unit value ('price')...
This study analyses seafood consumption at home in Spain using three different cross sections (1980,
1990, and 1998). Price indices for seafood and other items are calculated for each household. The
empirical analyses consists of the estimation of double hurdle models of seafood consumption for each
survey, separately. Socio-economic variables...
This study investigates the adjustment process of labor in the fishing industry of the Spanish regions
(Autonomous Communities). The analysis is based on a dynamic model applied to a panel of the 10
coastal regions in Spain for the period covering 1965 to 2001. A translog labor demand equation is...
Magnetically Assisted Fluidized Bed (MAFB) is a novel technology where an external magnetic field with constant gradient interacts with magnetically susceptible particles. The linear magnetic field creates two type of forces: external and interparticle magnetic forces. A theoretical mathematical model based on the interaction of ideal dipoles is proposed to...
I radio-tagged 191 Hatch-Year (HY) and After-Hatch-Year (AHY) female northern pintails (Anas acuta) in the San Joaquin Valley (SJV), California and studied their movements, habitat use and survival during August March, 1991-94.
Overall, 94.3% wintered in central California; the highest percentage left during
the 1991 drought. Tulare Basin and Mendota...
Small herds of cows were observed and spatially mapped over continuous twenty-four hour periods. Treatments were implemented that investigated the effect of water site and supplementation on animal distribution patterns. A series of six observation periods constituted each observation series. Observation series were repeated winter (January) and summer (July) for...