In the real world, the theory of economic faces many obstacles in its analyses and interpretations. One of these problems is overlapping relationships between specific variables and difficulty of determining perfect formulation which contain all possible effect. Traditional statistics tools like...

Data warehouse is the main technology which integrates data from company operations. Business Intelligence with DW at its center, enables the company to extract very important information for making business decisions from these data. Implementation of these systems is a very expensive and long...

Niniejszy tekst jest efektem prac badawczych maj¹cych na celu zebranie i uporz¹dkowanie pojêæ i metod zwi¹zanych z pocz¹tkowymi etapami przygotowania naukowego badania iloœciowego. Jednoczeœnie stanowi punkt wyjœcia do kolejnych zadañ badawczych, które obejm¹ zebranie i...

El análisis insumo-producto ha sido ampliamente usado en distintos escenarios, ya que es defácil implementación e interpretación. Sin embargo, es importante tomar en cuenta que laconstrucción de los coeficientes de la matriz insumo-producto deben hacerse con precaución,sobre todo en el...

Input-output (I-O) tables provide a snapshot of an economy, with details on i) intersectoral exchange of intermediate inputs, ii) components of final demand for sectoral outputs, and iii) components of sectoral value added and production. The tables are generally prepared by national statistics...

The paper presents a new framework to assess firm level heterogeneity and to study the rate and direction of technical change. Building on the analysis of revealed short-run production functions by Hildenbrand (1981), we propose the (normalized) volume of the zonotope composed by vectors-firms...

Processing trade and foreign-invested enterprises (FIEs) account for a large share of total Chinese exports. In producing exports, they also use imported inputs disproportionately, which complicates the measurement of domestic content embedded in exports and the distribution of income generated...