A new bivariate distribution in natural exponential family

We propose a new bivariate distribution following a GLM form i.e., natural exponential family given the constantly correlated covariance matrix. The proposed distribution can represent an independent bivariate gamma distribution as a special case. In order to derive the distribution we utilize an integrating factor method to satisfy the integrability condition of the quasi-score function. The derived distribution becomes a mixture of discrete and absolute continuous distributions. The proposal of our new bivariate distribution will make it possible to develop some bivariate generalized linear models. Further the discrete correlated bivariate distribution will also arise from an independent bivariate Poisson mass function by compounding our proposed distribution (Iwasaki and Tsubaki, 2002).Received March 2003     

Social capital in community level environmental governance: A critique

Social capital is often claimed to facilitate collective action regarding the management of complex environmental goods and services. However, there is little systematic analysis in the literature that explains the way social capital aids in fostering collective action. The paper integrates ideas from institutional ecological economics, sociology and anthropology to argue that power relations, involving struggle and resistance, should be acknowledged as they affect collective action. We address the question of why social capital should not be straightforwardly associated positively with common property resource management. To unravel the complexity of the links between social capital, collective action and common property resource management, the concepts of common knowledge and symbolic power are introduced.