No abstract

This study investigates how limit orders affect liquidity in a purely order-driven futures market. Additionally, the possible asymmetric relationship between market depth and transitory volatility in bull and bear markets and the effect of institutional trading on liquidity provision behavior are examined as well. The empirical results demonstrate that subsequent market depth increases as transient volatility increases in bull markets. Market depth exhibits significantly positive relationship to subsequent transient volatility in bull markets. Additionally, although trading volume positively influences transient volatility in bull markets, no such relationship exists in bear markets. Liquidity provision decreases when institutional trading activity intensifies during bear markets. Thus, liquidity provision for limit orders differs between bull and bear markets. Copyright (c) 2009 The Authors Journal compilation (c) 2009 Blackwell Publishing Ltd.

This study investigates how both the amount of information provided in and the timing of new product preannouncements (NPPAs) influence firm value over the NPPA period, the new product introduction (NPI) period and in the long term, respectively. We adopt an information economics perspective, and signalling theory in particular, to motivate our tests. The findings show that the share price impact of the product information content varies over the different time horizons assessed. It is positive within the NPPA period and in the long term, but insignificant within the NPI period. The use of an early NPPA is associated with a negative impact on firm value across the NPPA, NPI and long-term horizons. We also test for moderating effects and show that earlier timing weakens the positive impacts of information amount on firm value both within the NPPA period and the long-term horizon.