Participants in student loan programs must repay loans in full regardless of whether they complete college. But many students who take out a loan do not earn a degree (the dropout rate among college students is between 33 to 50 percent). We examine whether insurance against college-failure risk can be offered, taking into account moral hazard and adverse selection. To do so, we develop a model ...

Participants in student loan programs must repay loans in full regardless of whether they complete college. But many students who take out a loan do not earn a degree (the dropout rate among college students is between 33 to 50 percent). We examine whether insurance against college-failure risk can be offered, taking into account moral hazard and adverse selection. To do so, we develop a model ...

Intrusion detection technology is an effective approach to dealing with the problems of network security. In this paper, we present an intrusion detection model based on hybrid neural network and C4.5.The key idea is to take advantage of different classification abilities of neural network and the C4.5 algorithm for different attacks. What is more, the model could also be updated by the C4.5 ru...

We use the April 1993 Current Population Survey to examine the health insurance coverage decisions of the unemployed and to simulate the potential effects of the new Kassebaum-Kennedy legislation. After controlling for demographic characteristics, COBRA eligibility raises the probability of health insurance coverage by 0.095, while eligibility for spouse employer insurance increases the likelih...

Poor women with children in Ecuador were selected at random for a cash transfer equivalent to 7 percent of monthly expenditures. The transfer is greater than the increase in schooling costs at the end of primary school, but it is less than 20 percent of median child labor earnings in the labor market. Poor families with children in school at the time of the award use the extra income to postpon...