منابع مشابه
Superstar Extinction
We estimate the magnitude of spillovers generated by 112 academic “superstars” who died prematurely and unexpectedly, thus providing an exogenous source of variation in the structure of their collaborators’ coauthorship networks. Following the death of a superstar, we find that collaborators experience, on average, a lasting 5 to 8% decline in their quality-adjusted publication rates. By explor...
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Blueberries are a nutrient rich fruit containing antioxidants and anti-inflammatory compounds particularly anthocyanins, proanthocyanins, flavanols and tannins that are reported to be effective in reducing cholesterol and other blood lips, thereby reducing the risks of cardiovascular disease. Blueberry consumption is also associated with reducing the growth of some types of cancers, alleviating...
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Motivated by “condensation” phenomena often observed in social networks such as Twitter where one “superstar” vertex gains a positive fraction of the edges, while the remaining empirical degree distribution still exhibits a power law tail, we formulate a mathematically tractable model for this phenomenon which provides a better fit to empirical data than the standard preferential attachment mod...
متن کاملVitamin D: the emerging superstar.
Early age of assessment is the limitation of present study, and a much longer follow up might have been more informative. We would like to clarify that DQ of all VLBW infants was not above 90, it was the mean DQ of this group. A mean DQ below 85 was observed in 22% of infants. This finding along with difference of 6 point in mean DQ between two groups cannot be underestimated and warrants a lon...
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This paper develops a hedonic-price growth model where Superstar rewards induce patterns of innovation, learning, and income mobility and inequality. The model provides one formalization of how consumer attitudes towards knowledge-like goods (e.g., computer software) influence the latter’s creation and dissemination, and thereby economic growth and income distribution dynamics. The model can be...
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ژورنال
عنوان ژورنال: Asian Case Research Journal
سال: 2009
ISSN: 0218-9275,1793-6772
DOI: 10.1142/s0218927509001157