Kyung Suh Park

Traders' choice between limit and market orders: evidence from NYSE stocks

Abstract In this paper, we examine a traders order choice between market and limit orders using a sample of orders submitted through NYSE SuperDot. We find that traders place more limit orders relative to market orders when: (1) the spread is large, (2) the order size is large, and (3) they expect high transitory price volatility. A rise in informational volatility appears neither to increase nor decrease the placement of limit orders. We also find that a rise in lagged price volatility decreases the size of spread, which is driven by the increase in the placement of limit orders.

Microstructure-based manipulation: Strategic behavior and performance of spoofing traders

We examine how investors strategically spoof the stock market by placing orders with little chance of being executed, but which mislead other traders into thinking there is an imbalance in the order book. Using the complete intraday order and trade data of the Korea Exchange (KRX) in a custom data set identifying individual accounts, we find that investors strategically placed spoofing orders which, given the KRX’s order-disclosure rule at the time, created the impression of a substantial order book imbalance, with the intent to manipulate subsequent prices. This manipulation, which made use of specific features of the market microstructure, differs from previously studied forms of manipulation based on information or transactions. Roughly half of the spoofing orders were placed in conjunction with day trading. Stocks targeted for manipulation had higher return volatility, lower market capitalization, lower price level, and lower managerial transparency. We also find that spoofing traders achieved substantial extra profits. The frequency of spoofing orders decreased drastically after the KRX altered its order-disclosure rule. & 2012 Elsevier B.V. All rights reserved. JEL classification: G14

Credit crunch and shocks to firms: Korean experience under the Asian financial crisis

Abstract This article analyzes the bank restructuring process in Korea and empirically tests the existence of a credit crunch, which was possibly due to the portfolio adjustment behavior of credit banks to meet newly imposed capital adequacy requirements by the supervisory authorities. It finds that small- and medium-sized firms faced a serious credit crunch in the loan market, while larger firms rather easily avoided it.

Corporate governance structure and product market competition

Abstract This article assesses the effects of the competitive structure of a product market on a firm’s corporate governance structure. Our model demonstrates that shareholders strategically determine the corporate governance structure, including the manager’s stock ownership and his controlling power over the firm, in order to maximize their utility in the product market competition. We find that the manager’s stock ownership is lower and his controlling power over the firm is higher when the firm’s product is more profitable or when competition within the product market is more severe. The inefficiency of the wealth transfer from shareholders to the manager also affects the corporate governance structure.

Product Market Competition and the Ownership Choice of Business Groups: Evidence from Korean Chaebols

ABSTRACT This study investigates the effect of product market competition on the ownership choice of controlling shareholders in the Korean business groups known as chaebols. We find that member firms in more competitive markets have less disparity between the control and cash flow rights of controlling shareholders. The adjustment in ownership due to product market competition is implemented mainly through an adjustment in the ownership of affiliates rather than in the direct ownership of controlling shareholders. The disciplinary effect of product market competition is observed only in member firms with lower market power in their own industries. The result implies that product market competition works as a disciplinary mechanism that reduces the incentive of chaebols’ controlling shareholders to pursue the private benefits of control.