The implicit association test (IAT) measures bias towards often controversial topics (race/religion), while newspapers typically take strong positive/negative stances on such issues. In a pre-registered study, we developed and administered an immigration IAT to readers of the Daily Mail (typically anti-immigration) and Guardian (typically pro-immigration) newspapers. IAT Materials were construc...

Data from Princeton University’s New Immigrant Survey were analyzed to examine the associations between immigrants’ media use and 3 indicators of acculturation—current English proficiency, preference to use English in interactions, and American political knowledge. Findings show that pre-immigration uses of English language TV, radio, and print media and post-immigration use of English language...

This paper presented a parallel hybrid electric vehicle (HEV) equipped with a hybrid energy storage system. To handle complex energy flow in the powertrain system of this HEV, a fuzzy-based energy management strategy was established. A chaotic multi-objective genetic algorithm, which optimizes the parameters of fuzzy membership functions, was also proposed to improve fuel economy and HC, CO, an...

This paper analyses the impact of immigration on the welfare of the native population in an economy that consists of skilled and unskilled workers. Due to unionisation, the wage rate in the market for unskilled labour is above the competitive level. For a given skill endowment of the native population, we show that immigration reduces the welfare of the host country up to a certain threshold an...

Illegal labour immigration is increasingly a source of concern to politicians and the public in relatively rich countries within the Southern African Development Corporation (SADC). This paper examines the status of illegal immigration in Botswana and South Africa. The definition of illegal immigration is discussed. It draws extensively from similar experiences in the United States of America a...

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Immigration, Citizenship, and the Size of Government This paper analyzes the political sustainability of the welfare state in an environment where immigration is the main demographic force and where governments are able to influence the size and skill composition of immigration flows. Specifically, I present a dynamic politicaleconomy model where both income redistribution and immigration polic...

Abstrac t . Stream landscapes are highly variable in space and time and, like terrestrial landscapes, the resources they contain are patchily distributed. Organisms may disperse among patches to fulfill life-history requirements, but biotic and abiotic factors may limit patch or locality occupancy. Thus, the dynamics of immigration and extinction determine, in part, the local structure of assem...

Objective. Survey research posits that Mexican Americans’ perceptions of the costs and benefits of immigration drive their opinions about immigration, but this research does not provide a clear picture of how Mexican Americans calculate these costs and benefits. This article aims to understand the processes that explain how Mexican Americans calculate the costs and benefits of Mexican immigrati...