D12 Consumer Economics: Empirical Analysis
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CO2 emissions are disproportionately caused by more affluent consumers. In the political debate, this fact has triggered the demand for income redistribution and wealth taxes not only to reduce inequality but also to reduce CO2 emissions. This paper calculates the possible size of a green dividend, i.e., a reduction in total national CO2 emissions, of redistribution in 26 countries and concludes that, for most EU countries, it is negative if the redistribution is efficient, in the sense that it keeps average incomes constant. If the redistribution introduces inefficiencies that lead to total income losses, the negative green dividend, otherwise associated with additional redistribution, may be avoided.
We study households’ response to the redistributive effects of inflation combining bank data with an information experiment during historic inflation. Households are generally well-informed about inflation and concerned about its wealth impact; yet, while knowledge about inflation eroding nominal assets is widespread, most households are unaware of nominal-debt erosion. When informed about the latter, households view nominal debt more positively and increase estimates of their real net wealth.
These changes causally affect actual consumption and hypothetical debt decisions. Our findings suggest real wealth mediates the sensitivity of consumption to inflation once households are aware of the wealth effects of inflation.
The effect of unconventional fiscal policy on consumption – new evidence based on transactional data
(2024)
We use novel transaction-level card expenditure data to estimate the effect of the temporary value-added tax (VAT) cut in Germany 2020. We find that the annualized growth rate of expenditures for durables increased by 6 percentage points (pp) during the tax cut, with a particularly strong increase of up to 11 pp for consumer electronics. The expenditure growth rate for semidurables and non-durables did not change by and large. The estimates imply a consumption multiplier of 0.2 and an elasticity of fiscal revenues to a VAT rate reduction of two thirds.
We study the redistributive effects of inflation combining administrative bank data with an information provision experiment during an episode of historic inflation. On average, households are well-informed about prevailing inflation and are concerned about its impact on their wealth; yet, while many households know about inflation eroding nominal assets, most are unaware of nominal-debt erosion. Once they receive information on the debt-erosion channel, households update upwards their beliefs about nominal debt and their own real net wealth. These changes in beliefs causally affect actual consumption and hypothetical debt decisions. Our findings suggest that real wealth mediates the sensitivity of consumption to inflation once households are aware of the wealth effects of inflation.
We propose a new instrument for estimating the price elasticity of gasoline demand that exploits systematic differences across U.S. states in the pass-through of oil price shocks to retail gasoline prices. These differences, which are primarily driven by variation in the cost of producing and distributing gasoline, create cross-sectional dispersion in gasoline price growth in response to an aggregate oil price shock. We find that the elasticity was stable near -0.3 until the end of 2014, but subsequently rose to about -0.2. Our estimates inform the recent debate about gasoline-tax holidays and policies to reduce carbon emissions.
With open banking, consumers take greater control over their own financial data and share it at their discretion. Using a rich set of loan application data from the largest German FinTech lender in consumer credit, this paper studies what characterizes borrowers who share data and assesses its impact on loan application outcomes. I show that riskier borrowers share data more readily, which subsequently leads to an increase in the probability of loan approval and a reduction in interest rates. The effects hold across all credit risk profiles but are the most pronounced for borrowers with lower credit scores (a higher increase in loan approval rate) and higher credit scores (a larger reduction in interest rate). I also find that standard variables used in credit scoring explain substantially less variation in loan application outcomes when customers share data. Overall, these findings suggest that open banking improves financial inclusion, and also provide policy implications for regulators engaged in the adoption or extension of open banking policies.
