Defending against Return-Oriented Programming

This paper analyzes the return migration of foreign-born persons in the United States. We argue that return migration may have been planned as part of an optimal life-cycle residential location sequence. Return migration also occurs because immigrants based their initial migration decision on erroneous information about opportunities in the United States. The study uses the 1980 Census and admi...

W a firm allows the return of previously purchased merchandise, it provides customers with an option that has measurable value. Whereas the option to return merchandise leads to an increase in gross revenue, it also creates additional costs. Selecting an optimal return policy requires balancing both demand and cost implications. In this paper, we develop a structural model of a consumer’s decis...

I study a simple market microstructure model in a competitive setting where rational risk neutral investors anticipate becoming liquidity sellers (they are forced to sell with a certain probability) and paying transaction costs (adverse selection costs as well as fixed and/or proportional cost) at some future date. To buy stocks in the IPO they must be compensated for expected future trading lo...

This paper provides empirical study on the behavior of the Shanghai and the Shenzhen stock exchanges after the Chinese government announced to increase the securities transaction tax from 0.3% to 0.5% in May 9, 1997. We examine the impact of the increased transaction tax on the volatility of stock returns and tax revenue. We find that the return volatility significantly increased. We also find ...

We examine the effectiveness of the individual-punishment mechanism in larger groups, comparing groups of four to groups of 40 participants. We find that the individual punishment mechanism is remarkably robust when the marginal per capita return (MPCR), i.e. the return to each participant from each dollar that is contributed, is held constant. Moreover, the efficiency gains from the punishment...

The empirical joint distribution of return-pairs on stock indices displays high tail-dependence in the lower tail and low tail-dependence in the upper tail. The presence of tail-dependence is not compatible with the assumption of (conditional) joint normality. The presence of asymmetric-tail dependence is not compatible with the assumption of a joint student -t distribution. A general test for ...

We show that on the x86 it is possible to mount a return-oriented programming attack without using any return instructions. Our new attack instead makes use of certain instruction sequences that behave like a return; we show that these sequences occur with sufficient frequency in large Linux libraries to allow creation of a Turing-complete gadget set. Because it does not make use of return inst...