It is not surprising to see that firms that have more socially responsible actions (“good” firms) are rewarded by a higher market return of 3% per calendar year compared to firms that do not engage in socially responsible or irresponsible actions (“neutral” firms). On the contrary, firms that are more socially irresponsible (“bad” firms) are not penalized by a negative return compared to “neutr...

A common component in the mispricing of ETFs can arise from limits to arbitrage. I find strong evidence of commonality among of international country ETFs. Differences in systematic risk between an ETF and its underlying index can explain some of this effect. While non-synchronicity alone cannot explain it, it does amplify the effect. I then investigate whether this commonality can be a channel...

This article pursues two tasks. The first is to clarify the value and productivity of Williams’s Keywords: a vocabulary culture society (first edition 1976, second expanded 1983a) for project Cultural Studies. clarification helped, I argue, by reading it alongside Vološinov’s Marxism philosophy language (published in Russian 1929, translated into English 1973). related task speculative developm...

We study the development of conjunctive keyword searchable scheme which enables one to search encrypted documents by using more than one keyword. The notion of conjunctive keyword searching was presented by Golle et al. in 2004. However, their security model was constructed in a symmetric-key setting which is not applicable for the overall applications in the reality. So Park et al. extended Go...