Using mobile wallet and card transaction data from a leading Singapore bank, this paper studies the effect of a mobile wallet payment technology introduction in 2017 on business growth. We find the mobile wallet usage doubled after the new technology introduction, and the improved payment...

Using transaction-level credit card spending from a large US financial institution, we show that disaggregated sales provide accurate and persistent signals of customer demand relevant to a firm's stock pricing. After controlling for earnings and sales surprises, one inter-quintile increase in...

Using a large, representative sample of credit and debit card transactions in Singapore, this paper studies the consumption response of individuals whose same-building neighbors experienced personal bankruptcy. The unique bankruptcy rules in Singapore suggest liquidity shocks drive personal...

This paper uses individual-level data linking stock investments to work performance to examine how changes in stock market wealth affect worker output. Exploiting large return variations over time and across investors, we document a 10% increase in monthly stock investment returns is associated...

Using a large, representative sample of high-frequency credit card transactions in the United States, this paper examines the causal effect of sunshine-induced mood on contemporaneous household credit card spending. We document a 0.3 percent increase in credit card spending in response to a...

Using a large representative sample of bank card transactions, this paper examines the impact of terrorist attacks on the household consumption structure choice between credit versus debit accounts. Compared with the baseline period, we document a daily increase of 0.19% more in the fraction of...