This paper considers the portfolio problem for high dimensional data when the dimension and size are both large.We analyze the traditional Markowitz mean-variance (MV) portfolio by large dimension matrix theory, and find the spectral distribution of the sample covariance is the main factor to...

In this paper we develop a statistical model of language complexity trade-offs using four typological measures (related to phonology, morphology, syntax and lexicon). The data come from the 100-language sample that appears in the World Atlas of Language Structures (WALS), and the trade-offs are...

Capital structure is very important, especially the decision which concern with this problem, because the profitability of a company is directly affected by such decision. The successful choice and use of capital is one of the key components of the enterprises financial strategy. This means that...

Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...

Export performance and transformational performance are some of indicators for measuring outputs through which macroeconomic competitiveness is reported. The first one shows the productivity of the export and the second one value added in foreign trade. This paper deals with the relationship of...

Classical deÖnitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...

Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...

Many economic and financial time series exhibit time-varying volatility. GARCH models are tools for forecasting and analyzing the dynamics of this volatility. The co-movements in financial markets and financial assets around the globe have recently become the main area of interest of financial...

We investigate whether globalization influenced credit market deregulation over the period 1970-2010. Globalization is measured by the KOF indices of globalization. Credit market deregulation is measured by the credit market freedom indicators of the Fraser Institute. The results from both...

The interconnection among different choices by the same decision-maker is fairly well established in the literature. Along this line, this paper aims to identify how preferences for electromobility are affected by mode choices for regular trips. With this purpose in mind, a framework based on...

We develop networks of international stock market indices using information and correlation based measures. We use 83 stock market indices of a diversity of countries, as well as their single day lagged values, to probe the correlation and the flow of information from one stock index to another...

Applicability of Wagner's hypothesis to six East Asian countries is studied for a period of nearly a half-century during which their economic growth has often been termed as a "miracle". Despite the high rates of growth in most cases, there is little indication to support the hypothesis except...

Es wird wissenschaftlich kontrovers diskutiert, ob kausal schlüssige und empirisch robuste Befunde für die Beeinflussung der "realen" Lebensmittelpreise durch Spekulanten vorliegen. Die korrelative Koinzidenz von ansteigender Terminmarktspekulation und einem steigenden Preisniveau lässt auf...

It is well known that any statistic based on sample averages can be sensitive to outliers. Some examples are the conventional moments-based statistics such as the sample mean, the sample variance, or the sample covariance of a set of observations on two variables. Given that sample correlation...

The historical evidence suggests a high correlation between changes in the stock of money per unit of output and changes in prices in the same direction. The goal of this paper is to analyze the correlation between the monetary aggregates and the price stability before, during and after the...

The interconnection among different choices by the same decision-maker is fairly well established in the literature. Along this line, this paper aims to identify how preferences for electromobility are affected by mode choices for regular trips. With this purpose in mind, a framework based on...

Given two sets of random variables, how can one determine whether the former variables are more interdependent than the latter? This question is of major importance to economists, for example, in comparing how various policies affect systemic risk or income inequality. Moreover, correlation is...

Classical definitions of complementarity are based on cross price elasticities, and so they do not apply, for example, when goods are free. This context includes many relevant cases such as online newspapers and public attractions. We look for a complementarity notion that does not rely on price...

The aim of this work is to determine the influence that exports of footwear industry have on the turnover of the sector. In the work, a period of 9 years is taken into consideration: from 2004 to 2012, establishing an econometric model of analysis of the connection between the turnover and...

As we know investment in the Saudi stock market (TASI) is gaining popularity particularly since 2001 (Report of Aljazira Capital ¨C 2010), it is important to know the impact of different macro-economic variables on the returns of the Saudi stock market. In this regard along with an extensive...

This paper presents aspects regarding the ranking of 65 companies listed on the Bucharest Stock Exchange. The purpose of this paper is to view the hierarchy of companies, subject to the case study based on the self-financing capacity. The introduction of the paper presents the objective, the...

This paper studies the cyclicality of aggregate real wages in Japan. By using both static and dynamic approaches, I measure comovements between real wages and business cycle indicators. This paper finds that while real wages constructed using the consumer price index and the GDP deflator are...