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...

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 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...

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...

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...

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...

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 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...

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...

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...

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...