We analyze the impact of option trading and margin rules on the behavior of informed traders and on the microstructure of stock and option markets. In the absence of binding margin requirements, the introduction of an options market causes informed traders to exhibit a relative trading bias...

We analyze the impact of option trading and margin rules on the behavior of informed traders and on the microstructure of stock and option markets. In the absence of binding margin requirements, the introduction of an options market causes informed traders to exhibit a relative trading bias...

We analyze the impact of option trading and margin rules on the behavior of informed traders and on the micro structure of stock and option markets. In the absence of binding margin requirements, the introduction of an options market causes informed traders to exhibit a relative trading bias...

We show that the regulation requiring corporate insiders to disclose their trades ex post creates incentives for informed insiders to manipulate the market by sometimes trading against their information. This allows them to increase their trading profits by maintaining their information...

We consider the pricing of fixed-for-floating and fixed-for- fixed cross-currency interest-rate swap options (currency swaptions). We show that the first swaption is equivalent to an option to purchase, for a fixed strike price in the local currency, a stochastic number of foreign bonds, where...