This paper analyses the relation between air quality and subjective well-being in Germany. Life Satisfaction (LS) data from the German Socio-Economic Panel Study (SOEP) is connected with daily county pollution in terms of carbon monoxide (CO), nitrogen dioxide (NO2) and ozone (O3) from 1998 to 2008. The assumed microeconometric happiness function is estimated considering individual time invaria...

We study the development of conjunctive keyword searchable scheme which enables one to search encrypted documents by using more than one keyword. The notion of conjunctive keyword searching was presented by Golle et al. in 2004. However, their security model was constructed in a symmetric-key setting which is not applicable for the overall applications in the reality. So Park et al. extended Go...

In this paper we present several proofs on the extension of M. Riesz fractional integration and di¤erentiation to the contexts of spaces of homogeneous type and measure metric spaces with non-doubling measures. 1. Introduction, some de…nitions, and a basic lemma Professor M. Ash asked me to write a survey article on some of the results that Stephen Vági and I obtained in the nineties on fractio...

Rotating electrical machines with their inherently high inertial energy density are finding applications in a variety of laboratory based as well as field based pulsed power systems. Of particular interest to the electromagnetic/ electrothermal launch community is the campensated pulsed alternator. This machine has over the past few years shown greater potential, because, besides the high energ...

We develop a two-country, two-sector model of trade where the only difference between the two countries is their distribution of human capital endowments. We show that even if the two countries have identical aggregate human capital endowments the pattern of trade depends on the properties of the two human capital distributions. We also show that the two distributions of endowments also complet...

We present a model of conflict in which discriminatory government policy or social intolerance is responsive to various forms of ethnic activism, including violence. It is this perceived responsiveness—captured by the probability that the government gives in and accepts a proposed change in ethnic policy—that induces individuals to mobilize, often violently, to support their cause. Yet, mobiliz...

This paper establishes a stylized fact: in a cross-section of American consumers, consumption is an extremely poor predictor of future income. The PSID now contains the majority of the lifetime income stream for an early cross-section of consumers. Under the assumption that consumption is a function of the expected present value of income, I invert this function and compare the realized present...

There is a well-developed literature of project evaluation based on the assumption that a project is "efficient" if losers could, potentially, be compensated by gainers. In sharp contrast, relatively little systematic work has been done to develop a corresponding economics of project evaluation under actual compensation criteria. This is largely because the amount of compensation that is actual...

Why are regional unemployment differentials in Europe so persistent if, as the wage curve literature demonstrates, there is no compensation in labour markets? We hypothesize that workers in high-unemployment regions are compensated in housing markets. Modelling regional unemployment differentials as a consequence of centralized wage bargaining, we show that clearing of land markets may undo the...

We develop a two-country, two-sector model of trade where the only difference between the two countries is their distribution of human capital endowments. We show that even if the two countries have identical aggregate human capital endowments the pattern of trade depends on the properties of the two human capital distributions. We also show that the two distributions of endowments also complet...