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Input-output tables are a simple tool, used for studying the structure of economies or sectors' demand and supply linkages. The aim of this paper is to present and compare the main characteristics of 2 selected sectors in V4 countries, namely the agriculture and food sectors. The analysis is based on the input output coefficients and multipliers, used for studying input, output and import relationships. These analyses can reveal ongoing structural changes what represents an interesting topic especially for former transition economies. The objective is to verify the similarities in the position and the development of these sectors, to examine backward and forward linkages and their strength in order to identify key sectors and to measure possible concentrations of their impacts. With accordance to the previous research and general trends, we expected certain decline of importance over the period 2000-2014, especially in terms of production, employment but also in overall effects on the whole economy. This was mostly confirmed with the exception of Polish data that point out to relatively stronger domestic position of both sectors. The presented results were obtained within the Research Project VEGA/1/0961/16

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Input-output models allow quantification of direct and indirect linkages in the structure of an economy. Based on these linkages, it is possible to evaluate in details the effects of various sectors on the national economy. This paper focuses on the exporting sectors that are considered to be the main industries of Slovak economy. Its aim is to examine their direct and indirect impacts on Slovakia's economy. From the point of view of assessing the effects and structural links of export industries for the Slovak economy, the computer, electronic and optical product manufacturing sector appears to be relatively the least important sector. The automobile production does not generate a high value added per unit of production but its importance for Slovak production is significant. From the point of view of demand and supply linkages, none of the monitored export sectors seemed to be the key for Slovak economy.

The input-output analysis is based on the analysis of the various multipliers. Together with the analysis of the coefficients of intermediate production it allows to evaluate the structure of the economy, the impacts of changing demand in various sectors in national economy. IOT framework also offers a very detailed image of intersectorial economic linkages, either backward or forward oriented. It helps to understand the impacts of the changing structure of the national economy. The aim of this paper is to look closely at the evolution of two selected industries (agriculture and food production) in Slovak and Czech Republic over the period 2000-2014. We compared the evolution of technical, allocation and import coefficients as well as output, input and import multipliers in case of these two industries in order to verify the similarities in their development.