As the complexity of banking technology systems increases, the prevention of technological risk becomes an endless battle. Currently, most banks rely on the experience and subjective judgement of experts and employees to allocate resources for technological risk management, which does not...

We test the invariance-of-bet hypothesis from Kyle and Obizhaeva (2016) for one of the largest order-driven equity markets: the Tokyo Stock Exchange (TSE). The pooled regression coefficients of the log of the number of trades on the log of trading activities range from 0.586 to 0.679, close to...

We test the invariance-of-bet hypothesis from Kyle and Obizhaeva (2016) for the Tokyo Stock Exchange. The pooled regression coefficients of log of the number of trades on log of trading activities range from 0.586 to 0.679, close to the theoretical value of two-thirds predicted by the...

In this article, we investigate the validity of diversification effect under extreme-value copulas, when the marginal risks of the portfolio are identically distributed, which can be any one having a finite endpoint or belonging to one of the three maximum domains of attraction. We show that...

Using the split-share structure reform in China, we examine the effect of stock liquidity on investment efficiency. We find that enhanced stock liquidity leads to more efficient investment and the effect is much more pronounced for under-investing firms compared to over-investing firms. We also...