منابع مشابه
phylogeography and genetic diversity of the lesser mouse- eared bat (myotis blythii) in iran
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Ptolemaic Indexing
This paper discusses a new family of bounds for use in similarity search, related to those used in metric indexing, but based on Ptolemy’s inequality, rather than the metric axioms. Ptolemy’s inequality holds for the well-known Euclidean distance, but is also shown here to hold for quadratic form metrics in general. In addition, the square root of any metric is Ptolemaic, which means that the p...
متن کاملImplications of ethnic diversity
Ethnically differentiated societies are often regarded as dysfunctional, with poor economic performance and a high risk of violent civil conflict. I argue that this is not well-founded. I distinguish between dominance, in which one group constitutes a majority, and fractionalisation, in which there are many small groups. In terms of overall economic performance, I show that both theoretically a...
متن کاملFertility and Ethnic Diversity
This paper relates national fertility rates to political factors. I first review evidence that community norms affect fertility, ethnic groups compete politically in many countries, and a group’s relative size affects its ability to compete. This evidence jointly suggests that population growth and fertility may be public goods at the ethnic group level in diverse societies. Next, I present a s...
متن کاملEthnic diversity deflates price bubbles.
Markets are central to modern society, so their failures can be devastating. Here, we examine a prominent failure: price bubbles. Bubbles emerge when traders err collectively in pricing, causing misfit between market prices and the true values of assets. The causes of such collective errors remain elusive. We propose that bubbles are affected by ethnic homogeneity in the market and can be thwar...
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ژورنال
عنوان ژورنال: Acta Antiqua Academiae Scientiarum Hungaricae
سال: 2016
ISSN: 0044-5975,1588-2543
DOI: 10.1556/068.2016.56.3.1