Experiments in scientific computation on the PlayStation 3

The Sony PlayStation 3 (PS3) offers the computational power of a parallel processor at low cost, which makes it a great starter unit for development in parallel programming. To explore the capabilities of the unit, we took a simple ray tracing program and extended it to render triangulated height field data across the PS3’s 6 synergistic processing units (SPUs). We also implemented the heat averaging equation as a precursor to CFD analysis on the PS3. In our studies, we found the Cell engine in the PS3 to be a powerful machine, however great care must be taken while developing because its unique platform calls for many levels of optimization to ensure efficiency.     

International mobility of capital,wage indexation,and the cost of policy mistakes under ambiguity: a CGE evaluation

In this paper we focus on the role institutions and structural parameters play in macroeconomic policy design and test the differential effects of tax policies on two structural parameters: the degree of international capital mobility and the rules of wage indexation practiced in the economy. We evaluate counterfactual changes in taxation in the Argentine economy using a Computable General Equilibrium (CGE) Model with unemployment, calibrated with 2006 data, showing that policy mistakes (diagnosis failures) are costlier when the degree of capital mobility is greater and the rules to determine salaries could amplify the losses. Among other taxes, we evaluate the choice of export taxation, historically one of the preferred revenue sources of Argentine governments. We discuss the choice of taxes that an optimistic and a pessimistic policymaker will make under Knightian uncertainty and find that, in the case of our CGE, an optimistic policymaker prefers to tax export goods, while a more pessimistic one tends to tax imports or non-tradable goods.     

The four faces of the Hispanic consumer: An acculturation-based segmentation

This article develops and tests a segmentation scheme for the U.S. Hispanic market based on the extent and nature of acculturation. Acculturation is conceptualized as driven by language preferences and two dimensions of cultural identification, Hispanic and American. Structural equation modeling develops and assesses the proposed scales, and a latent class clustering procedure (latent discriminant analysis) tests propositions on a sample of 403 U.S. Hispanics. Consistent with theory, four clusters of U.S. Hispanics emerge: retainers, biculturals, assimilators, and non-identifiers that vary according to language preference and cultural identification.     

Beyond the Transaction: Banks and Mortgage Default of Low‐Income Homebuyers

We evaluate the effects of the lending institution and soft information on mortgage loan performance for low‐income homebuyers. We find that even after controlling for the propensity of a borrower to get a loan from a local bank based on observable characteristics, those who receive a loan from a local bank branch are significantly less likely to become delinquent or default than other bank or nonbank borrowers, consistent with an unobserved information effect. These effects are most pronounced for loans originated to borrowers with marginal credit, where soft information may have a stronger effect. These findings support previous research on information‐driven lending, and provide additional explanation for observed differences in mortgage loan performance between bank and nonbank lenders.     

Consumer Perceptions and Pricing Practices for Weddings

Journal of Consumer Policy - Weddings represent a specific consumption experience with unusual pressures (financial and emotional). Societal pressures of perfection and the experience itself,...     

Schools and public buildings in decay: the role of political fragmentation

It is a widespread concern that schools and other public buildings are in poor conditions. A popular explanation is that maintenance is given too little priority in the budgetary process because politicians are shortsighted. In this paper we investigate this hypothesis using two novel survey data sets on school and general building conditions in Norwegian local governments. We use political fragmentation as a proxy for myopic behavior and provide strong empirical evidence that a high degree of political fragmentation is associated with poor building conditions, both for schools and for buildings in general. The finding is robust to handling of controls, outliers, and estimation method. We also provide evidence that lack of maintenance is the channel for poor building conditions.     

Sense and sensibility in personalized e‐commerce: How emotions rebalance the purchase intentions of persuaded customers

This research develops and tests a theoretical model of customer persuasion in personalized online shopping, building on information processing theory, and addressing cognitive and affective stages of the persuasion process. Data from 582 experienced online customers were used to validate the proposed model through structural equation modeling and multigroup analysis. Results show that quality of personalization, message quality, and benefits of the personalized recommendations are important in the persuasion process. Positive emotions increase the effect of persuasion on purchase intentions, contrary to negative emotions. The study extends online personalization theory, offers an in‐depth analysis of the persuasion process in online shopping, and provides valuable recommendations for personalized online marketing.     

Structural changes in employment and the quality of life of the populations of Russian million-plus cities

This paper considers structural changes in employment and the labor compensation fund of cities with a million-plus population, as well as changes in their role in the economy of the country and regions. It has been shown that the concentration of the population in the largest cities continues to increase, while the nature of changes in their role in manufacturing and retail trade proves to be contradictory. At the same time, Russia and other countries are characterized not so much by the outflow of industry from cities as its transformation. The problems of the social sphere of cities have also been shown.