This paper attempts to measure the performance of railway companies that produce passenger and freight services around the world. The data covering 10 years from 2000 to 2009 is analyzed first via the data envelopment ...

This study attempted to examine the effects of exchange rate volatility, using the squared residuals from the autoregressive moving average (ARMA) models, on stock returns for the U. S. for the period 1980 to 2008. Even ...

This paper studies demands and expectations of people about the content of the new constitution supposed to be prepared after the parliamentary election of June, 2011 in Turkey. For that purpose, a survey was applied across ...

This study attempts to predict interactions among the world energy use efficiency, world GDP per capita, and world energy price via developing VAR models. There exist significantly causal interactions among these variables ...

Suppose that the matrix equations system (A(1)XB(1), ... , A(k)XB(k)) = (C-1,..., C-k) with unknown matrix X is given, where A(i), B-i, and C-i, i = 1, 2,..., k, are known matrices of suitable sizes. The matrix nearness ...

Introduction: One of the cardiovascular effects of hyperthyroidism is increased carotid intima media thickness (CIMT). The aim of this study is to investigate the CIMT in patients with Graves' hyperthyroidism and the effect ...

The causality relationship between economic growth and coal, natural gas and oil consumption was investigated using the ARDL (autoregressive distributed lag bounds) testing approach for the 1980-2011 period in Brazil, ...

It was concluded that using of NO in addition to antibiotherapy could increase the success rate of experimental intraabdominal sepsis therapy and blood procalcitonin and WBC levels could be more beneficial than CRP levels ...

In this paper, we test the causal relationship between economic growth and tourism development in the 1995-2012 period using recently developed panel Granger causality tests that allow for country-level heterogeneity, thus ...