A crucial aspect of empirical research based on ARIMA(p,q) model is the choice of the appropriate lag order. Several criteria have been used in order to identify the appropriate order of a ARIMA(p,q) process. In this paper we investigate the effects of using a variation of selection criteria...

This paper investigates the existence of any linear or non-linear diachronic relationship between the financial newspapers circulations and the General Index of the Athens Stocks Exchange (ASE). We employed a nonlinear version of the Hsiao¢s (1979) linear causality technique in order to test...

The Inverse Almost Ideal Demand System is employed for the empirical analysis of the demand for organic, integrated-agriculture, and conventional fresh vegetables, using a cross section data surveyed in Rethymno, Greece during the 2005-06 period. The demand system is estimated by employing the...

Common stochastic trends among major international stock price indices has been a very intensively analyzed issue mainly as a result of the 1987 stock market crash and the need for policy coordination in financial markets. This paper investigates the existence of common stochastic trends among...

This paper develops a tractable theoretical framework for analyzing the substitutability between different advertising media, the extent of marketing spillovers in the market, the allocative efficiency of advertising spending, and the sources of total advertising productivity and sales growth....

We study the construction of confidence intervals for efficiency levels of individual firms in stochastic frontier models with panel data. The focus is on bootstrapping and related methods. We start with a survey of various versions of the bootstrap. We also propose a simple parametric...

This paper investigates the effect of the government’s ability to commit, or not, to a specific level of environmental policy instrument, or environmental innovation and welfare in imperfectly competitive markets. We that under monopoly if the government is unable to commit, and follows thus a...

This paper provides Value-at-Risk estimates for daily stock returns with the application of various parametric univariate models that belong to the class of ARCH models which are based on the skewed Student distribution. We use daily data for three stock indexes of the Athens Stock Exchange...

By estimating bivariate EGARCH (2, 1) models, we find significant short run dynamic relations between stock market and real activity for the UK and the US over the period 1970-2002. There is evidence of significant reciprocal volatility spillovers between the two sectors within a country,...

The present paper explores the scope of strategic delegation, to the firms' R&D investments and market competition in a Cournot Oligopoly. The firms' owners' have two alternative strategies: either the Full Delegation (FD) one, in which firms' owners delegate both short-run and long-run...