Most measures of liquidity assume that the cost of buying and selling is symmetric. This paper analyses liquidity in an open electronic limit order book exchange without market makers, where it is possible to directly measure the impact cost of a market order to buy and to sell. There is clear...

Contrary to the weak role of single stock derivatives found in the price discovery literature, this paper finds that single stock futures (SSF) traded on a liquid exchange have a high average information share of 49 percent, which increases by six percentage points upon information arrival. A...

The timeliness of the credit rating of a firm has been frequently called into question over the previous two decades. This paper examines whether changes in credit ratings can be updated more frequently than at the frequency of updates in the accounting data. The paper finds that, when market...

Option markets have significant variation in liquidity across different option series. Illiquidity reduces the informativeness of the price. Price information for illiquid options is more noisy, and thus the implied volatilities based on these prices are more noisy. In this paper, we propose a...

This paper analyses the systemic risk in an emerging market context, with two innovations. It uses the average of the percentile ranking of three widely used measures of systemic risk of a firm to calculate a single systemic risk index (SRI) for the firm. It then uses the SRI to identify...