Profiting from spillovers is one of the key reasons behind technological collaboration agreements, agglommeration and even social stratification. Previous research has tended to ignore the costs of activities to internalize the externalities. We propose and solve a simple model for the tradeoff between costly socialization and direct productive effort. Our model can explain phenomena like the r...

In recent years, utilization of feature selection techniques has become an essential requirement for processing and model construction in different scientific areas. In the field of software project effort estimation, the need to apply dimensionality reduction and feature selection methods has become an inevitable demand. The high volumes of data, costs, and time necessary for gathering data , ...

introduction: social capital is multidimensional and it is about the value of social networks and relations between people. social capital refers to the relationships that forms the quality and quantity of the society’s social interactions. this study was designed to determine the relationship between social capital and faculty member’s job satisfaction in shiraz medical school. method: social ...

in value creation process via finding and exploiting opportunities, entrepreneurs have to create and use social networks to gain access to resources and information and benefit from their social capital. the entrepreneurs’ activities, contacts and performance can influence the social capital of a society. this research reviews the previous research regarding the effect of sex segregation on soc...

During recession, many macroeconomic variables display higher levels of volatility. We show how introducing an AR(1)-ARCH(1) driving process into the canonical Lucas consumption CAPM framework can account for the empirically observed greater volatilty of asset returns during recessions. In particular, agents' joint forecasting of levels and time-varying second moments transforms symmetric-volat...

Public health and its "basic science", epidemiology, have become colonised by the individualistic ethic of medicine and economics. Despite a history in public health dating back to John Snow that underlined the importance of social systems for health, an imbalance has developed in the attention given to generating "social capital" compared to such things as modification of individual's risk fac...

Abstract. We review the theory and evidence on venture capital (VC) and other private equity: why professional private equity exists, what private equity managers do with their portfolio companies, what returns they earn, who earns more and why, what determines the design of contracts signed between (i) private equity managers and their portfolio companies and (ii) private equity managers and t...

Information technology (IT) is enabling financial services companies and particularly banking firms to create new forms of organizations. Both globalization of markets and more rigorous regulation throughout the European Union such as recently the implementation of the European Capital Adequacy Directive put pressure on the banking firm to either spend ever more money in coordinating business a...