THE DETERMINANTS OF MARKET BID ASK SPREADS ON THE AUSTRALIAN STOCK EXCHANGE: CROSS-SECTIONAL ANALYSIS

Prior research into the cost of trading on the Australian Stock Exchange has identified brokerage fees and the bid-ask spread as significant elements of total transaction costs. While an enormous volume of research has examined the determinants of spreads in US markets, no work has so far addressed the issue for the Australian market-place. Given the importance of spreads as a transaction cost, this work redresses this imbalance and at the same time provides evidence on whether alternative market structures underlying different exchanges give rise to differences in the determinants of spreads. Using prior US research as our benchmark, our results suggest that notwithstanding microstructure differences between the Australian and US exchanges, there are three fundamental determinants of spreads that transcend differences in the market-places. These are the level of trading activity, price volatility and stock price levels. Together these three factors account for up to 94% of the total cross-sectional variation in percentage bid ask spreads on the ASX.     

Multimarket trading and liquidity: a transaction data analysis of Canada–US interlistings

We use transaction data for Toronto Stock Exchange (TSE) listed stocks to examine the impact on trading costs of the decision to interlist on a US exchange. We measure trading costs using both ‘posted’ bid-ask spreads and ‘effective’ bid-ask spreads that measure actual transaction prices relative to standing bid-ask quotes. After controlling for price level, trade size and trading volume effects, we find that overall posted and effective spreads in the domestic (TSE) market decrease subsequent to the interlisting. However, the decrease in trading costs is concentrated in those TSE stocks that experience a significant shift of total trading volume (TSE and US) to the US exchange after listing. We interpret this result in the context of theories of multimarket trading as a competitive response by TSE market makers to the additional presence of US market makers.     

Exchange rate risk and transactions costs: Evidence from bid-ask spreads

This paper develops a model of exchange rate bid-ask spreads which is used to examine the relationship between exchange rate risk and volatility and to measure transactions costs. The empirical results indicate that market-makers judge the probability of exchange rate changes based on both recent and long-term volatility and that the second moment alone is not a complete measure of volatility. While a proxy for trading volume does not have the expected relationship with spreads, weekend and holiday effects conform to theory. Transactions costs vary over time and seem responsive to the imposition of exchange controls.     

Explaining co-movements between equity and CDS bid-ask spreads

In this paper I show that the co-movements between bid-ask spreads of equities and credit default swaps vary over time and increase over crisis periods. The co-movements are strongly related to systematic risk factors and to the theoretical debt-to-equity hedge ratio. I document that hedging and asymmetric information, besides higher funding costs and market volatility risk, are driving factors of the commonality and are significantly priced in CDS bid-ask spreads.     

Market making with discrete prices

Exchange-mandated discrete pricing restrictions create a wedgebetween the underlying equilibrium price and the observed price.This wedge permits a competitive market maker to realize economicprofits that could help recoup fixed costs. The optimal ticksize that maximizes the expected profits of the market makercan equal to $1/8 for reasonable parameter values. The optimaltick size is decreasing in the degree of adverse selection.Discreteness per se can cause time-varying bid-ask spreads,asymmetric commissions, and market breakdowns. Discreteness,which imposes additional transaction costs, reduces the valueof private information. Liquidity traders can benefit undercertain conditions.     

THE RELATIONSHIP BETWEEN OTC BID-ASK SPREADS AND DEALER SIZE: THE IMPACT OF ORDER-PROCESSING AND DIVERSIFICATION COSTS

The effects of large transactions on OTC security dealers' bid-ask spreads are analyzed for stocks with different price levels. Because overhead expenses vary little with the value of transactions, economies of scale exist for dealers in higher-priced stocks. Thus, percentage bid-ask spreads decline with the price level of the stock. However, larger transactions entail larger order-clearing and inventory-adjustment costs. These costs may be particularly burdensome for smaller dealers with limited purchasing powers and abilities to diversify inexpensively. Consequently, smaller dealers charge higher spreads for trading high-priced stocks.     

The liquidity of automated exchanges: new evidence from German Bund futures

Previous literature has suggested that automated exchanges such as the Deutsche Terminborse (DTB) may be less liquid than their open-outcry counterparts such as the London International Financial Futures Exchange (LIFFE), although evidence provided on this issue has been mixed. This paper provides new evidence on the relative magnitudes of bid-ask spreads in the Bund contract traded on the DTB and LIFFE using intraday data from a period in which each exchanges share of total Bund trading was closer than previous research. The findings suggest that quoted bid-ask spreads are wider on the LIFFE than the DTB, even after controlling for their determinants. Furthermore, bid-ask spreads on the DTB increase more rapidly as price volatility increases relative to the LIFFE. Overall, this evidence implies that while automated exchanges are capable of providing more liquidity than floor traded exchanges, the relative performance of automated exchanges deteriorates during periods of higher volatility.     

Trading Patterns and Prices in the Interbank Foreign Exchange Market

The behavior of quote arrivals and bid-ask spreads is examined for continuously recorded deutsche mark-dollar exchange rate data over time, across locations, and by market participants. A pattern in the intraday spread and intensity of market activity over time is uncovered and related to theories of trading patterns. Models for the conditional mean and variance of returns and bid-ask spreads indicate volatility clustering at high frequencies. The proposition that trading intensity has an independent effect on returns volatility is rejected, but holds for spread volatility. Conditional returns volatility is increasing in the size of the spread.     

Stochastic Dominance Bounds on American Option Prices in Markets with Frictions

We derive equilibrium restrictions on the range of the transactionprices of American options on the stock market index and indexfutures. Trading over the lifetime of the options is accountedfor, in contrast to earlier single-period results. The boundson the reservation purchase price of American puts and the reservationwrite price of American calls are tight. We allow the marketto be incomplete and imperfect due to the presence of proportionaltransaction costs in trading the underlying security and dueto bid-ask spreads in option prices. The bounds may be derivedfor any given probability distribution of the return of theunderlying security and admit price jumps and stochastic volatility.We assume that at least some of the traders maximize a time-separable utility function. The bounds are derived by applyingthe weak notion of stochastic dominance and are independentof a trader's particular utility function and initial portfolioposition.     

Stock Price Dynamics and Firm Size: An Empirical investigation

We show that after controlling for the effects of bid-ask spreads and trading volume the conditional future volatility of equity returns is negatively related to the level of stock price. This “leverage effect” is stronger for small, as compared to large, firms. We also document that while the essential characteristics of the relations between stock price dynamics and firm size are stable, the strengths of the relationships appear to change over time.