Among the proposed network models, the hidden variable (or good get richer) one is particularly interesting, even if an explicit empirical test of its hypotheses has not yet been performed on a real network. Here we provide the first empirical test of this mechanism on the world trade web, the network defined by the trade relationships between world countries. We find that the power-law distrib...

Since 1990, the United Nations Development Programme (UNDP) has published a series of annual Human Development Reports (HDRs) in which the human development index (HDI) is computed for each country. This index has become an important alternative to the traditional unidimensional measure of development (i.e. the gross domestic product). Although the index still fails to include any ecological co...

gross domestic product plus a small percentage. If one used data from recent years, both of these metrics would only slow the growth of health spending relative to the size of the economy as a whole. We do not expect that Baumol’s hypothesis will be proved false, but one may reasonably hope that the previously inexorable expansion of the fraction of our national effort that is devoted to health...

OBJECTIVE To describe the number and distribution of pediatricians per child nationally and on a state-by-state basis relative to the economic conditions within each state. STUDY DESIGN Real inflation-adjusted gross domestic product (GDP) per capita (1996 dollars) was plotted against the number of all active physicians and pediatricians in the United States for all years data were available. ...

This article attempts to examine the factors affecting residential electricity consumption through two approaches, a socioeconomic perspective and a direct use perspective. The results of this study find that gross domestic product (GDP), employment rates, residential space, and the implementation of energy labeling schemes provide significant impacts on residential electricity consumption. How...

OBJECTIVE To determine factors associated with variation in bicycle helmet use by youth of different industrialized countries. DESIGN A multinational cross sectional nationally representative survey of health behaviors including symptoms, risk taking, school setting, and family context. SETTING School based survey of 26 countries. SUBJECTS School students, ages 11, 13, and 15 years totali...

the study examines production efficiency of farmers under national fadama-ii project in oyo state nigeria. primary data were collected from two hundred and sixty-four farmers using multistage sampling technique. the analytical framework used for the study include: descriptive, infrastructure index, gross margin and stochastic frontier production function. average infrastructural index in the ar...

accounting earning represents the positive performance of companies during theirpertinent financial periods, thus it is assumed that accounting earning will benoted by investors, which could contribute to the optimum allocation of resourcesto successful companies. it can also play a major role in the economic growth anddevelopment of a society. this research focuses in the relationship between ...

abstract oil export revenues have a major share in both iranian government incomes and gross domestic product (gdp). with regard to the importance of agricultural sector in economic growth, rural development and rural welfare improvement, this sector indubitably influenced by temporary and unexpected shocks in oil export. therefore we employed feder(1982) and auto-regressive distributed lag (ar...