This work is devoted to the study of the relation between intermittence and scale invariance. We find the conditions that a function in which both effects are present must satisfy, and we analyze the relation with characteristic scales. We present an efficient method that detects characteristic...

This work is devoted to the study of the relation between intermittence and scale invariance, and applications to the behavior of financial indices near a crash. We developed a numerical analysis that predicts the critical date of a financial index, and we apply the model to the analysis of...

This paper employs a structural time series model designed with three components of stochastic seasonality, trigonometric expression of cyclicality and local linear trend to investigate the evolutionary process of China's GDP. In particular, the model is able to detect the stop–go feature of...

Purpose: A proposed analytical model in this research analyses the corresponding angles of the strategic triangles (Prospector, Analyzer, and Defender). The model compares the angle differences between the strategy and resource triangles with opinions from different management groups of...

This paper examines how the nature of a common property resource affects the effectiveness of community-based management on resource conservation. We focus on groundwater management in rural China because there are different types of community-based groundwater management in different...

Immigration restrictions usually arise from the idea that immigrants compete with original residents for jobs. Their effects on urban job creation are often ignored. In this study, we develop an inner-city dual labor market model that incorporates both of those effects, and apply it to empirical...

To explain the time dependence of cell voltage in CWS (coal water slurry) electrolysis, the effects of three coal types along with graphite, CWS concentration and catalysts on cell voltage are examined. Results show that the overall cell voltage for CWS electrolysis is lowered as coal rank...

Self-organized networks are pervasive in communication systems such as the Internet, overlay networks, peer-to-peer networks, and cluster-based services. These networks evolve into complex topologies, under specific driving forces, i.e. user demands, technological innovations, design objectives...

Job polarization has existed before, during, and since the Great Recession.

We investigate the effects of team competition on pro-social lending activity on Kiva.org, the first microlending website to match lenders with entrepreneurs in developing countries. Using naturally occurring field data, we find that lenders who join teams contribute 1.2 more loans ($30-$42) per...