This paper models the firm's production process as a system of simultaneous technologies for desirable and undesirable outputs. Desirable outputs are produced by transforming inputs via the conventional transformation function, whereas (consistent with the material balance condition) undesirable...

We develop a novel unified econometric methodology for the formal examination of the market power -- cost efficiency nexus. Our approach can meaningfully accommodate a mutually dependent relationship between the firm's cost efficiency and marker power (as measured by the Lerner index) by...

In the age of globalisation, implementation and commercialisation of new technologies are perceived as key elements determining competitiveness of particular countries, therefore, the growth of innovativeness is seen as the predominant direction of European Union society's transformation into...

The consumer price index (CPI) is a key economic indicator used to gauge inflation, adjust wages, pensions, and social benefits. The producer prices index (PPI) is used for forecasting and deflating GDP estimates. Both indexes are used by the Fund, policymakers, and researchers for global,...

This paper provides nonparametric identification results for a class of latent utility models with additively separable unobservable heterogeneity. These results apply to existing models of discrete choice, bundles, decisions under uncertainty, and matching. Under an independence assumption,...

This paper deals with two alternatives to the so-called Hausman test for the exogeneity of instruments, in the context of a model where one or more explanatory variables are possibly correlated with the structural error. These two alternatives are at least as good or better than the Hausman test...

The paper presents a comparison of the two languages Python and R related to the classification tools and demonstrates the differences in their syntax and graphical output. It indicates the functionality of R and Python packages {dendextend} and scipy.cluster as effective tools for the...

Inflation or price level targeting is becoming more popular as a policy objective of the central bank's monetary policy and fiscal policy to guide them. Policy choices calculated price level is as important as the targeted inflation rate due to the different indices can produce different levels...

We present the structure and properties of an aggregate model for the European Union, consisting of 34 equations estimated on annual data aggregated over the twelve-member EU, ranging from 1960 to 1997. Estimation was performed by a two-stage procedure taking into account the possible presence...

We present the structure and properties of an aggregate model for the European Union, consisting of 34 equations estimated on annual data aggregated over the twelve-member EU, ranging from 1960 to 1997. Estimation was performed by a two-stage procedure taking into account the possible presence...