The Weather Research and Forecasting (WRF) model can help to improve our understanding of analysing forecasting hydrometeorological disasters. Especially for some regions like the Nile Delta, which faces growing climate hazards but has inadequate in situ rainfall observations. However, identifying an optimal configuration run WRF is often a challenge. In this study, was used simulate extreme ev...

This paper focusses on the insurance role of religion in buffering the well-being impact of stressful life events, and the ensuing economic and social implications. Using two large-scale European data sets, we show that the religious enjoy higher levels of life satisfaction, and that religion does insure against some adverse life events. All denominations suffer less psychological harm from une...

A mechanism is said to be renegotiation-proof if it is robust against renegotiation both before and after it is played. We ask (1) what kind of environments admit the renegotiation-proof implementation of some social choice rules? (2) for a given environment, what kind of social choice rule are implementable in a way that is renegotiationproof? and (3) for a given renegotiation-proof implementa...

Power is a core concept in the analysis and design of organisations. In this paper we consider positional power in hierarchies. One of the problems with the extant literature on positional power in hierarchies is that it is mainly restricted to the analysis of power in terms of the bare positions of the actors. While such an analysis informs us about the authority structure within an organisati...

The use of social sanctions against behaviour which contradicts a set of informal rules is often an important element in the functioning of informal institutions in traditional societies. In the social sciences, sanctioning behaviour has often been explained in terms of the internalisation of norms that prescribe the sanctions (e.g. Parsons 1951) or the threat of new sanctions against those who...

Some autocracies are economically successful; others stagnate at low levels of production. Paradoxically, the latter ones appear to possess more natural resources and be more resistant to political change. This paper adresses a dynamic relation between the capital accumulation and the political regime in presence of resource rents. It argues that private capital accumulation increases an unfett...

The Malthusian theory of evolution disregards a pervasive fact about human societies: they expand through con ict. When this is taken account of the long-run favors not a large population at the level of subsistence, nor yet institutions that maximize welfare or per capita output, but rather institutions that maximize free resources. These free resources are the output available to society afte...

The acquisition and dispersion of information, a critical aspect of economic decisions, can occur through a network of agents (Jackson, 2009). Empirical and theoretical findings suggest that an efficient information dispersion network takes the form of a star: small numbers of agents gather information and distribute it to a large group. Controlled tests of this theory, however, have typically ...

This paper compares the characteristics of M&A in 1991-2005 across five countries: Japan, France, Germany, the UK and USA. We ask what factors explain the growth of M&A markets across these countries, and what similarities and differences exist in the ways the M&A market operates. We find that the growth of M&A reflects a rather similar combination of sectoral, international, and financial fact...

The Malthusian theory of evolution disregards a pervasive fact about human societies: they expand through con ict. When this is taken account of the long-run favors not a large population at the level of subsistence, nor yet institutions that maximize welfare or per capita output, but rather institutions that maximize free resources. These free resources are the output available to society afte...