Browsing by Subject "Non-survey method"

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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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    The vulnerability of regional agriculture regarding irrigation water from the Tagus-Segura transfer
    (Elsevier, 2025-02-04) Buendía Azorín, José Daniel; Martinez Alpañez, Ruben; Sanchez de la Vega, Maria del Mar; Economía Aplicada
    Input–output tables provide a useful tool for analysing economic and environmental impacts, which has led to their extension beyond the national level to the regional level. The availability of the intermediate demand matrix allows for the extraction of income multipliers and employment multipliers to assess the environmental impacts of different economic activities. This can intuitively be expected to play an important role in economic growth and employment in many regions, and to allow for more precise policy decision-making and application in sustainable development strategies. Despite the relevance of these input-output tables at regional level, there is an almost total absence of official data in most countries. This has led to the development of regionalisation methodologies, among which are those based on the application of location quotients. In these methods, corrections are applied to the obtained variables that depend on the value given to certain unknown parameters. This paper use a proposal of a simple and efficient procedure for estimating these parameters from generally available information on road freight transport and goods imports from the rest of the world. Applying them to estimate the input-output matrix of the Region of Murcia (Spain) made it possible to measure the economic impact of the Tagus-Segura transfer and to assess the impact of a reduction in the volume of transferable water. A hybrid approach was applied to obtain the Bi-Regional Input-Output matrix, which combines pure non-survey methods with matrix-balancing methods. This study quantifies the total contribution (direct, indirect and induced) of the agricultural branches associated with the irrigation water of the Tagus-Segura transfer to the economic output of the Region of Murcia. In addition, it estimates that a 50 % reduction of the current transferable volume of water would reduce regional output, Gross Value Added and regional employment by 1.6 %, 1.5 % and 3.8 %, respectively.