We study a number of large international military conflicts sinceWorld War II where we establish a news analysis as a proxy for theestimated likelihood that the conflict will result in a war. We findthat in cases when there is a pre-war phase, an increase in the warlikelihood tends to decrease...

Based on a new approach for measuring the comovements between stock market returns, we provide a nonparametric test for asymmetric comovements in the sense that stock market downturns will lead to stronger comovements than market upturns. The test is used to detect whether asymmetric comovements...

This paper tries to identify, for the first time, a chronology for the Portuguese stock market cycle and test for the presence of duration dependence in bull and bear markets. A duration dependent Markov-switching model is estimated over monthly growth rates of the Portuguese Stock Index for the...

We study the effect of X-Stream, the new trading platform of the Colombian Stock Exchange since February 2009, on the quality of the stock market. Contributing to the literature on market quality, this paper provides novel evidence of the effect of reforms on market design, trading rules and...

Based on the data of companies listed on A-share market during the year 2001 to 2009, this paper explores the relationship between product market power and trade volume in the view of heterogeneous beliefs. It's found that the improvement of product market power significantly promotes trading,...

This paper investigates the return performance of a portfolio of U.S. “vice stocks,” firms that manufacture and sell products such as alcohol, tobacco, gaming services and national defense. In my research, I examine a portfolio of sixty one vice stocks over the period 1996 to 2016. Using...

We create an artificial stock market (ASM) which mimics results of the analytical game theory model. By showing the convergence of simulated results to analytical, we assess the created ASM as a powerful tool for further research of more sophisticated market compositions and set-ups, allowing...

Based on the data of 786 companies listed on A-share market during 2001 to 2009, this paper studies firm-specific return volatility. It's found that the absolute level of firm-specific volatility is rising, while the weight of firm-specific volatility is decreasing, which implies declining...

In financial market, one of complex systems, there is highly nonlinear interaction between heterogeneous traders. Due to this nonlinear interaction, emergent behavior, which is so called ‘stylized facts' occurs in financial market. To understand impact of interaction between heterogeneous...

The huge increase of HFT activity in recent years has posed the crucial question of whether it is beneficial for financial markets to both researchers and regulators. Recent academic research has studied the impact of HFT on different measures of market quality, such as liquidity, transaction...