RESUMEN: El objetivo de este trabajo es el estudio de la integración del mercado español del aceite de oliva y la contrastación de la Ley de Precio Único (LPU) en dicho mercado. El análisis se lleva a cabo aplicando la técnica multivariante de cointegración a series mensuales (1987-2001)...

Statistical information of diverse official sources with respect to rain was revised and factors of productivity of the system bovine meat in the state of Sonora, Mexico, for the period from 1999 to 2008. Nine variables were analyzed statistically to obtain the Coefficient of Correlation(CC),...

The wheat occupies an important place in the feeding of the humanity and is the third cereal demanded after the maize and the rice; Sonant occupies the first one in production of wheat at national level with approximately a 45% of the seeded surface. In order to analyze the yield of wheat seedtime...

The feeding and the shelter are considered basic needs of the man and one of the options to satisfy them is through the lambs which contribute to cover them with their meat, wool and skin. For the analysis of the yield a flock took itself from twenty females and a stallion one of Pelibuey race...

The contamination of the ecosystems, over-exploitation and introduction of invading plants as well as the climatic change are considered causes of the loss of the biodiversity combined to the illegal animal traffic and plants that are exported of clandestine way to other countries which has...

The aim of this research is to estimate the marginal returns of higher education in Mexico and assess its impact on wages of individuals ending a career or graduate studies. The estimation is carried out through the procedure suggested by Heckman et al (2000 and 2001). The information used for...

The first observations of UV (290–400 nm) ever made at an agro-meteorological/radiometric station located in the metropolitan region of Maceió (9°28′S, 35°49′W, 127 m), Northeast Brazil, during 2008 are reported in this work. Solar UV radiation variability in different time scales and...

The demand-driven version of the open Input-Output model determines production as a function of final demand, given the production technology. On the contrary, in the supply-sided version, value added determines output and producers must induce sales in order to achieve a desired level of...

Economic structures can be studied as networks of industries linked through flows of commodities that - in turn - the consuming sectors use as inputs. The Input-Output (IO) model is a suitable framework for analysing those structures, because its main target is the study of interdependence...

The demand-driven version of the open Input-Output model determines production as a function of final demand, given the production technology. On the contrary, in the supply-sided version, value added determines output and producers must induce sales in order to achieve a desired level of...