The Asymmetric Effects of Consumer Confidence on Credit Card Spending in Turkey

This paper analyzes the asymmetric effects of consumer confidence on personal credit card expenditures in Turkey. To this end, the impact of the consumer confidence index on real credit card spending is investigated from January 2013 to June 2023 using the threshold generalized method of moments (GMM). The linear GMM model findings indicate that consumer confidence increases real credit card expenditures. Furthermore, when the threshold GMM model is estimated using the annual percentage change of the consumer confidence index as a threshold variable, the coefficients differ across low- and high-confidence regimes. More specifically, the consumer confidence index has a statistically significant positive impact on credit card expenditure in the low-confidence regime but not in the high-confidence regime. This indicates that the optimistic expectations of economic units in a low-confidence environment may stimulate credit card spending.