Brazil’s inequalities in welfare and poverty between and within regions can be accounted by differences in household attributes and returns to those attributes. Using Blinder-Oaxaca decompositions at the mean as well as at different quantiles of welfare distributions on regionally representative household survey data (2002-03 POF), this paper finds that household attributes account for most of ...

We study a global game in which actions are strategic complements over some region and strategic substitutes over another region. An agent’s payoff depends on a market fundamental and the actions of other agents. If the degree of congestion is sufficiently large, agents’ strategies are non-monotonic in their signal about the market fundamental. In this case, a signal that makes them believe tha...

We propose a methodology for constructing confidence regions with partially identified models of general form. The region is obtained by inverting a test of internal consistency of the econometric structure. We develop a dilation bootstrap methodology to deal with sampling uncertainty without reference to the hypothesized economic structure, and apply a duality principle to reduce the dimension...

i n the past decades, the effect of different tax amendments on various economic issues has been studied. the majority of these studies have avoided considering shadow economy as part of the calculation and analysis, and an issue, which has received little attention, is the relationship between green tax reforms and shadow economy, as for informal labor, which is well-connected to unemployment ...

abstract research and development (r&d;) spending plays a major role in innovation, raising productivity and increasing economic growth. the purpose of this paper is to investigate the impact of r&d; spending on growth and total factor productivity (tfp) in iran's agricultural sector. we estimate growth and productivity models using auto-regressive distributed lag (ardl) approach and data over ...

This paper defines and describes the classification of heterogeneous and otherwise abstract multi-user virtual environments. Furthermore, the aim of the paper is to compare the most critical features of the worlds, and thus, to establish solid foundation for the development of ideal multi-user virtual world. Total of 15 virtual worlds have been selected for qualitative survey, which includes me...

Today, globalization and integration processes in the economy have a significant impact on industrial development of cities regions. The purpose article is to analyze substantiate directions industry Kharkiv region context based competitive approach. article, study leading scientific publications content analysis statistical information, reveals peculiarities region's industry. research used se...

risk prediction plays an increasing role in financial risk management. this study aims to investigate existence of asymmetry and long memory volatility in tehran stock exchange index daily data over period of 1998-2006. 1467 daily index returns are used for volatility modeling via garch (long & short memory) processes for both normal and t-student innovations. the specification and forecasting ...

User generated virtual worlds, such as Second Life, typically lack accurate metadata for their virtual world objects. This is a significant problem for blind users who rely on textual descriptions in order to access virtual worlds using synthetic speech. In this paper, we consider the problem of automatic object labeling to improve accessibility of virtual worlds for users with disabilities. Ta...

JEL CLASSIFICATION C26, C99, D03, I18. PSYCINFO CLASSIFICATION 2360; 3920.