We develop an empirically highly accurate discrete-time daily stochastic volatility model that explicitly distinguishes between the jump and continuous-time components of price movements using nonparametric realized variation and Bipower variation measures constructed from high-frequency...

In this paper the author presents a comparative study between two methods of Analysis and Forecast of EU-15 Exports from 1996 to 2005: one of the methods is applied for the Analysis and Forecast of the Components' Evolution in an Aggregate Economic Phenomenon using their Weights while the other...

Fundaments of classification lie on the interdependences between the features and the labels to classify. For social parameters, this relationships are difficult to model and measure. In this paper, a way of obtaining a social indicator using sentiment analysis in Twitter is explained. With the...

It is a common understanding that bankruptcy is not a sudden occurrence for any organizations. Macro and micro economic studies have suggested numerous influential factors, which have substantial evidence toward firm's performance (Bekeris, 2012) and survivability (Nehrebecka & Dzik, 2013). With...

In the study of long-run economic growth, it is common to use historical or geographical variables as instruments for contemporary endogenous regressors. We study the interpretation of these conventional instrumental variable (IV) regressions in a general, yet simple, framework. Our aim is to...

The traditional modern portfolio model posits that return is a function of beta—the stock's sensitivity to market movements. However, much research suggests that on an empirical basis this expectation does not hold. Pettengill, Sundaram and Mathur (1995) [PSM] suggest that the problem is that...

This research paper is interested to propose an alternative distributed lag model from a multi-dimensional perspective. It is entitled "The Mega-space Distributed Lag Model". The main objective of the Mega-space Distributed Lag Model is to study different micro and macroeconomic scenarios...

This paper tests for robust multidimensional poverty comparisons across six countries of the West African Economic and Monetary Union (WAEMU). Two dimensions are considered, nutritional status and assets. The estimation of the asset index is based on two factorial analysis methods. The first...

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...

Nowadays the Government of industrialised countries, in presence of reduced public funds, has to manage the public research laboratories to increase the efficiency and research performance, necessary to the competitiveness of firms and of economic systems. The purpose of this paper is to...