Credit cards provide benefits to consumers and merchants not provided by other payment instruments as evidenced by their explosive growth in the number and value of transactions over the last 20 years. Recently, credit card networks have come under scrutiny from regulators and antitrust authorities around the world. The costs and benefits of credit cards to network participants are discussed. F...

We use the decision by 14 states to remove credit card interest rate caps after the U.S. Supreme Court's 1978 Marquette decision as a natural experiment to explore the impact of credit card availability on black entrepreneurship. Using self-employment as a measure of entrepreneurship, we use Current Population Survey data from 1971-1985 to show that removing state-level rate caps led to increas...

Using data from a credit card issuer, a neural network based fraud detection system was trained on a large sample of labelled credit card account transactions and tested on a holdout data set that consisted of all account activity over a subsequent two-month period of time. The neural network was trained on examples of fraud due to lost cards, stolen cards, application fraud, counterfeit fraud,...

Smart cards (also called chip cards or IC-cards) are portable modest computing devices with programmable data store and certain tamper-resistance capabilities. They are embedded in a plastic card that looks like a traditional magnetic stripe credit-card. We review the state of the art of e-commerce applications of smart cards.

Article history: Received 8 February 2010 Available online 11 February 2010 JEL classification: D50 D51 D53 D61 E40 E50 E51 E52 E58

Data mining has been increasing as one of the chief key features of many security initiatives. Often, used as a means for detection of fraud, assessing risk as well. Data mining involves the use of data analysis tools to discover unknown, valid patterns as well as relationships in large data sets. Decades have seen a massive growth in the use of credit cards as a transactional medium. Data mini...

Nowadays credit cards have become a prerequisite in our daily activities. The misuse of credit card is increasing day by day. There are several ways in which a offender performs a credit card fraud. It is always been advised to exercise and provide additional security to the credit cards in order to elude the frauds. This paper focuses on credit card frauds. It addresses the cyber security chal...