منابع مشابه
Consistent Estimation and Inference When Data Follows a Power Law∗
Power laws are common in economic phenomena, such as the size of cities and firms. When they occur, these power laws can cause estimates of economic quantities to have extremely different variances when those quantities observed at an aggregate level (for example, at the city or firm level). I show that in general, estimators based on observations exhibiting this extreme heteroskedasticity may ...
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A strong correlation between centrosome age and fate has been reported in some stem cells and progenitors that divide asymmetrically. In some cases, such stereotyped centrosome behaviour is essential to endow stemness to only one of the two daughters, whereas in other cases causality is still uncertain. Here, we present the different cell types in which correlated centrosome age and fate has be...
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As extensions to the Black-Scholes model with constant volatility, option pricing models with time-varying volatility have been suggested within the framework of generalized autoregressive conditional heteroskedasticity (GARCH). However, application of the GARCH option pricing model has been hampered by the lack of simulation techniques able to incorporate early exercise features. In the presen...
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The development of blood-compatible materials is reviewed. It grew from originally simplistic views of physical requirements such as surface charge and wettability, to endothelial cells seeded onto a biodegradable cast, and tissue engineering. In vitro findings grew from the discovery of one specific protein being adsorbed, to that of sequential protein adsorption with complex implications of p...
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ژورنال
عنوان ژورنال: Current Anthropology
سال: 2015
ISSN: 0011-3204,1537-5382
DOI: 10.1086/681006