Browsing by Subject "Location quotients"

Now showing 1 - 3 of 3
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    A New Improvement Proposal to Estimate Regional Input–Output Structure Using the 2D-LQ Approach
    (MDPI, 2023-01-09) Martinez Alpañez, Ruben; Buendía Azorín, José Daniel; Sanchez de la Vega, Maria del Mar; Economía Aplicada
    The use of location quotients for the estimation of regional input–output tables has been found to be a useful and efficient tool to estimate intraregional production coefficients and multipliers. This paper considers some regionalisation methodologies based on location quotients for the estimation of input–output tables—some of which have hitherto not been analysed at the regional level—and studies which one provides the best estimation (best goodness of fit). We focus the analysis mainly on the accuracy of Flegg’s location quotient (FLQ) and two-dimensional location quotient (2D-LQ). The analysis makes use of the multiregional input–output table for Korea for the year 2015 to evaluate the accuracy of the 2D-LQ method against FLQ. A novel proposal for the determination of the parameters corresponding to the 2D-LQ method is presented. This proposal is evaluated in Korean regions and is also applied to Spanish regions. The results obtained from the research conclude the general superiority of the 2D-LQ method, thus corroborating the results of other studies at the national level as well as the validity of our proposal.
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    A new proposal to model regional input–output structures using location quotients. An application to Korean and Spanish regions.
    (John Wiley & Sons Ltd, 2022-07-12) Buendía Azorín, José Daniel; Martínez Alpañez, Rubén; Sánchez de la Vega, María del Mar; Economía Aplicada
    Este artículo se basa en el uso de los cocientes de localización de Flegg (FLQ) y propone un procedimiento novedoso para la estimación del parámetro desconocido δ en regiones con y sin disponibilidad de marcos input-output. Aplicado a los datos de las regiones coreanas para el año 2015, en primer lugar se aborda la determinación del δ óptimo mediante la resolución de un problema de optimización general y, en segundo lugar, se propone una ecuación de regresión para estimar el valor de δ a partir de las variables explicativas del transporte interregional de mercancías por carretera (IRFT) y las importaciones del resto del mundo (IROW). Los resultados obtenidos muestran un sesgo menor en relación con los valores verdaderos de los coeficientes inputs regionales en relación con otros métodos basados ​​en cocientes de localización.
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    Efficiency in the estimation of technical coefficients and interregional multipliers: the Jahn methodology versus the GRAS and Gravity-RAS methodologies.
    (Asociación Española de Ciencia Regional, 2024-01-24) Buendía Azorín, José Daniel; Martínez Alpañez, Rubén; Sánchez de la Vega, María del Mar; Economía Aplicada
    The use of location quotients for the estimation of regional input-output tables has been found to be a useful and efficient tool to estimate intra-regional production multipliers. Building on this tool, more complex procedures have been developed that simultaneously estimate inter-regional coefficients. This paper assesses the capacity of this extended methodology (called the Jahn methodology) to obtain both intra-regional and inter-regional multipliers for the Spanish case, using the Input-Output Table (IOT) of Spain 2015 to estimate those corresponding to the Spanish regions of Andalusia, the Basque Country and Navarra for the same year and whose results are available via survey. In order to contrast their reliability, efficiency and accuracy, the results obtained with this procedure are then compared with other methodologies widely used for their recognised efficiency, the GRAS and Gravity-RAS methodologies. -------------