The regulatory debate concerning high-frequency trading (HFT) emphasizes the importance of distinguishing different HFT strategies and their influence on market quality. Using data from NASDAQ-OMX Stockholm, we compare market-making HFTs to opportunistic HFTs. We find that market makers...

We investigate different designs of circuit breakers implemented on European trading venues and examine their effectiveness to manage excess volatility and to preserve liquidity. Specifically, we empirically analyze volatility and liquidity around volatility interruptions implemented on the...

We investigate the volatility impacts of the full commission deregulation in Japan in October 1999, and find that the deregulation overall tends to significantly increase price volatility in the Japanese equity market, using alternative model specifications and control variables. This finding...

This paper examines the impact of MIB30 Index Futures on the volatility of the Italian Stock Exchange. The results suggest that the onset of futures trading may have led to diminished daily volatility. They also suggest that the nature of the volatility itself has not changed between the...

This paper examines the price discovery and volatility spill-over relationship for Indian commodity markets. We cover twelve actively traded commodities including agriculture, metal and energy and four commodity indices. Price discovery is confirmed for eight commodities and three indices with a...

The paper examines empirically the impact of price limits and trading halts on stock market volatility. Circuit breakers are regulatory instruments aiming to reduce severe price volatility and provide markets with a cooling off period. However, the effectiveness of circuit breakers on the...

Volatility extensions in closing auctions are designed to improve the efficiency of the closing price. We hypothesize that the channel for the efficiency increase is that extensions improve market integrity and investor trust in the auction mechanism. We confirm that the introduction of a...

We study empirically how competition among high-frequency traders (HFTs) affects their trading behavior and market quality. Our analysis exploits a unique dataset, which allows us to compare environments with and without high-frequency competition, and contains an exogenous event - a tick size...

Macroeconomic factors play a pivotal role in attracting foreign investment in the country. This study investigates the relationship between macroeconomic factors and foreign portfolio investment volatility in South Asian countries. The monthly data is collected for the period ranging from 2000...

I study empirically how competition among high-frequency traders (HFTs) affects their trading behavior and market quality. The analysis exploits a unique dataset, which allows comparing environments with and without high-frequency competition, and contains an exogenous event - a tick size reform...