منابع مشابه
Introducing Variety in Risk Management
“Yesterday the S&P500 went up by 3%”. Is this number telling all the story if half the stocks went up 5% and half went down 1%? Surely one can do a little better and give two figures, the average and the dispersion around this average, that two of us have recently christened the variety [1]. Call ri(t) the return of asset i on day t. The variety V(t) is simply the root mean square of the stock ...
متن کاملThe desire for sexual variety as a key to understanding basic human mating strategies
Different authors have proposed competing evolutionary theories of human mating. Some argue that both sexes are designed to pursue a singular long-term mating strategy. Others contend that both sexes are designed to function as essentially multiple maters. Sexual Strategies Theory (SST; D.M. Buss & D.P. Schmitt, 1993), in contrast, proposes that men and women have evolved short-term and long-te...
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ژورنال
عنوان ژورنال: Second Language Research
سال: 1997
ISSN: 0267-6583,1477-0326
DOI: 10.1191/026765897672176425