introduction: road traffic crashes (rtcs) are very common across the world and in iran. the aim of this study was to estimate the economic burden of road traffic accidents in tehran province, iran in 2009. methods: t his was a descriptive, cross-sectional retrospective study. the study population included all deceased and injuries due to rtcs in tehran in 2009. the economic burden of rtc was es...

Sousa (2010a) shows that the residuals from the common trend among consumption, financial wealth, housing wealth and human capital, cday, can predict quarterly stock market returns better than cay from Lettau and Ludvigson (2001), which considers aggregate wealth instead. In this paper, we use a more appropriate proxy of human capital, which alleviates the potential correlation between the resi...

The strategic human capital literature indicates the importance of human capital to work unit performance. However, we argue that human capital only aids performance when it is translated into actions beneficial to the unit. We examine a set of common human capital leveraging characteristics (including the use of extended shifts, night shifts, shift flexibility, norms for work as a priority ove...

This paper analyzes optimal linear taxes on capital and labor incomes in a life-cycle model of human capital investment, financial savings, and labor supply with heterogenous individuals. A dual income tax with positive marginal tax rates on not only labor but also capital income is optimal. The key function of the tax on capital income is to reduce labor tax distortions on human capital accumu...

This paper posits a notion of the value of an individual’s human capital and the associated return on human capital. These concepts are examined using U.S. data on male earnings and financial asset returns. We find that (1) the value of human capital is far below the value implied by discounting earnings at the risk-free rate, (2) mean human capital returns exceed stock returns early in life an...

the present paper aimed at developing an approach based on fuzzy inference system (fis) for measuring of knowledge sharing in the organization. in recent years there has been increasing interest in the knowledge sharing by experts and managers in the world, according to increasing importance of knowledge as the key source of competitive advantage, organizations have made serious effort to find ...

With the rise of the knowledge economy, the importance of intellectual capital has grown. The concept of intellectual capital was raised by Galbraith in 1969, since when the market to book value of corporations around the world has increased dramatically. The implication of this phenomenon is that value creating factors have shifted from tangible assets to intangible ones. Thus, in order to cre...