This paper studies the performance of four market protocols with egard to allocative efficiency and other performance criteria such as volume or volatility. We examine batch auctions, continuous double auctions, specialist dealerships, and a hybrid of these last two. All protocols are...

We develop a price maker/taker model to study how a financial transaction tax affects markets where potential traders take a price or quote prices for the next potential trader. We find taxes widen quoted and effective spreads by many times the tax; significantly reduce asset prices, gains from...

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...

We develop a price maker/taker model to study how a financial transaction tax affects markets. We find taxes widen quoted and effective spreads by more than twice the tax. Taxes increase volatility slightly (without intermediation) to significantly (with intermediation). High taxes may halve...

We analyse order placement strategies in a limit order market, using data on the order flow from the Stockholm Stock Exchange. Traders submitting market or limit orders trade off the order price against both the execution probability and the winner’s curse risk associated with different order...