Dietzenbacher E. and Velazquez E. (2007) Analysing Andalusian virtual water trade in an input-output framework, Regional Studies 41, 1-12. Andalusian agricultural sectors are relatively small, but account for 90% of annual water consumption. More than 50% of the agricultural final demands is...

Agricultural exports are important to many regional economies, as is the case for agricultural exports wither produced in or shipped through Louisiana. A hybrid (revised and verified) IMPLAN model of the Louisiana economy is used to estimate the direct and indirect impact of agricultural...

Sensitivity analysis has become an important tool to test the robustness of estimated economic models. In this paper we propose the use of simulation-based sensitivity analysis to identify the fundamental structure of the economy. To show the possibilities of this technique, we provide empirical...

Progress is traditionally measured by the improvement of an economy's average characteristics from year to year. Some deeper insight might be gained by splitting the averages into explicit parameters for the new and old technologies at work within the same year, and recognising that innovative...

Ragnar Frisch claimed on various occasions that he had invented the principles of input-output analysis. Frisch and Leontief worked simultaneously on their respective contributions but within different contexts. Frisch's contribution was an attempt to cope with market collapse of the depression...

In this paper, the input-output model is extended with assets. It allows us to examine the various assets that are held and used in production. The requirements of assets that must be held by each sector can thus be specified. Extending the input-output model with assets provides a better...

This paper aims to show the utility of the so-called Social Accounting Matrix and Environmental Accounts (SAMEA) for economic and environmental efficiency analysis. The article use the SAMEA for Spain in 2000, applied to the water resource and to greenhouses gases emissions. The estimation has...

Este artículo presenta una metodología para la estimación anual de Matrices de Contabilidad Social (SAM, Social Accounting Matrix, en terminología anglosajona). Esta metodología ha sido desarrollada para construir estas matrices a partir de datos procedentes de las Cuentas Nacionales y de...

Economic systems often are described in matrix form as x=Mx. We present a new theorem for systems of this type where M is square, nonnegative and indecomposable. The theorem discloses the existence of additional economic relations that have not been discussed in the literature up to now, and...