Study by Gross and Souleles (2002) on Liquidity Constraints and Consumer Behavior

Interpreting Consumer Borrowing Behavior

An economist observes that after a bank automatically and unexpectedly raises the credit limits for a large group of its cardholders, the average monthly balance carried by these individuals increases significantly. Based on this evidence, what is the most logical inference about this group of cardholders before their credit limits were raised?

Evaluating an Economic Conclusion

Critique of a Credit Constraint Study

Critique of a Credit Constraint Study

A financial institution unexpectedly and automatically raises the credit limits for a large, random sample of its customers. A subsequent review finds that a significant portion of these customers increased their outstanding debt shortly after the limit change. Based on this observation alone, it is logical to conclude that these specific customers' previous spending levels were restricted by their access to credit.

A bank is conducting a study to identify which of its customers are 'credit-constrained,' meaning their spending is limited by their access to credit rather than their desire to spend. They automatically increase the credit limits for four different groups of customers. Which of the following scenarios provides the most reliable evidence that the affected group was credit-constrained before the limit increase?

A research study observes that when a credit card company automatically increases the borrowing limits for a random group of its clients, the average debt held by these clients rises. The researchers conclude that these clients were previously 'credit-constrained,' meaning their spending was limited by their access to credit. Which of the following discoveries, if true, would most seriously undermine the validity of this conclusion?

An economist wants to test the hypothesis that a portion of the population is 'credit-constrained,' meaning their spending is directly limited by their ability to borrow. The economist plans to study consumer behavior after a credit card limit increase. Which of the following study designs would provide the least reliable evidence to identify individuals who were previously credit-constrained?

A research team is studying consumer spending by analyzing data from a bank that automatically raised the credit limits for a random selection of its customers. The team compares the borrowing patterns of these customers to a similar group whose limits were not changed. Match each element of this study to its correct role in the experimental design.