The recent crisis has highlighted the crucial role that existing linkages among banks and financial institutions plays in channeling and amplifying shocks hitting the system. The structure and evolution of such web of linkages can be fruitfully characterized using concepts borrowed from the...

We have analyzed the topology of 50 important Turkish companies for the period 2006–2010 using the concept of hierarchical methods (the minimal spanning tree (MST) and hierarchical tree (HT)). We investigated the statistical reliability of links between companies in the MST by using the...

We examine the hierarchical structures of Turkey’s foreign trade by using real prices of their commodity export and import move together over time. We obtain the topological properties among the countries based on Turkey’s foreign trade during the 1996–2010 period by using the concept of...

We investigate hierarchical structures of the European countries by using debt as a percentage of Gross Domestic Product (GDP) of the countries as they change over a certain period of time. We obtain the topological properties among the countries based on debt as a percentage of GDP of European...

Since its introduction fifteen years ago, minimal spanning tree has become an indispensible tool in econophysics. It is to filter the important economic information contained in a complex system of financial markets’ commodities. Here we show that, in general, that tool is not optimal in terms...

The effects of the inflows of private foreign capital on some major macroeconomic variables in India are analyzed using quarterly data for the period 1993-99. Cointegration test and The Granger Causality Test are done to understand the relationship between variables [WP No. 311].

Temporally aggregated data is a bane for Granger causality tests. The same set of variables may lead to contradictory causality inferences at different levels of temporal aggregation. Obtaining temporally disaggregated data series is impractical in many situations. Since cointegration is...

This paper investigates the direction of temporal causality between budget deficit and interest rate in South Africa using quarterly data for the period of 1961:02 to 2005:04, and also for annual data covering 1961 to 2005. Based on a multivariate Vector Error Correction Model (VECM), estimated...

According to the research on the relationship between rural finance and farmers’ income growth by domestic scholars, there are certain disadvantages in the stationary test, model design, data collection of time series data. According to the data from 1992 to 2005, per capita net income of...

Temporally aggregated data is a bane for Granger causality tests. The same set of variables may lead to contradictory causality inferences at different levels of temporal aggregation. Obtaining temporally disaggregated data series is impractical in many situations. Since cointegration is...