We demonstrate that the process of discovering efficient values in equity trading introduces noise in prices. Noise plays an important role in theoretical microstructure literature, and empirical studies have documented high, U-shaped intra-day volatility that is a manifestation of noise. While...

We infer motives for trade initiation from market sidedness. We define trading as more two-sided (one-sided) if the correlation between the numbers of buyer- and seller-initiated trades increases (decreases), and assess changes in sidedness (relative to a control sample) around events that...

Investors who possess the same information and interpret it differently are said to have divergent (as distinct from) homogeneous expectations. Financial economists have widely frowned on the divergent expectations assumption. Nevertheless, this assumption describes reality and is critically...

For a market to be viable, participants must be heterogeneous. Traditional asymmetric information models achieve this by including informed, uninformed, and noise traders. We model heterogeneity differently by relaxing the assumption that identically informed agents form homogeneous...

We show that equity markets are typically two-sided and that trades cluster in certain trading intervals for both NYSE and Nasdaq stocks under a broad range of conditions - news and non-news days, different times of the day, and a spectrum of trade sizes. By quot;two-sidedquot; we mean that the...

For over three decades, microstructure literature has grown and trading systems around the world have been reengineered into modern electronic platforms. This paper considers these developments, concentrating on microstructure issues that are germane to equity market architecture, and focusing...

This paper provides evidence that floor brokers add value that helps offset the higher cost of accessing the trading floor, making it a desirable venue for orders requiring more careful handling. We compare execution costs of non-block trades handled by Amex floor brokers with trades entered...

This paper models quote setting and price formation in a non-intermediated, order driven market where trading occurs because investors differ in their share valuations and the advent of news that is not common knowledge, and tests the model using transaction data on individual stocks in the...