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The Effect of Social Comparison on Debt Taking: Experimental Evidence

A number of studies show that there is a link between social comparison and high levels of household debt. However, the exact mechanisms behind this link are not yet well understood. In this paper, we disentangle two mechanisms by performing a lab experiment designed to study the effects of social image concerns and peer information on consumption choices financed through debt taking. We find that ...

The 13th Berlin IO Day

The Berlin IO Day is a one-day workshop sponsored by the Berlin Centre for Consumer Policies (BCCP) and supported by the Berlin's leading academic institutions, including DIW Berlin, ESMT Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Technische Universität Berlin. The aim is to create an international forum for high quality research in Industrial Organization...

The Role of Physician-Patient Similarity in Diagnosis and Treatment Decisions: Evidence from Antibiotic Prescribing

Physicians in primary care provide initial diagnosis and treatment for a diverse set of patients. However, whereas patients are demographically and socio-economically heterogeneous, physicians typically come from affluent and highly-educated backgrounds. As a result, there is often a mismatch between physicians and the community they serve. I investigate the role of patient-physician similarity...

Ignorance, Intention and Stochastic Outcomes

In sequential interactions, both the agent’s intention and the outcome of his choice may influence the principal’s action. While outcomes are typically observable, intentions are more likely to be hidden, leaving potential wiggle room for the principal when deciding on a reciprocating action. We employ a controlled experiment to investigate how intentions and outcome affect the principal’s actions ...

Expectation Management of Policy Leaders: Evidence from COVID-19

This paper studies how the communication of political leaders affects the expectation formation of the public. Specifically, we examine the expectation management of the German government regarding COVID-19-related regulatory measures during the early phase of the pandemic. We elicit beliefs about the duration of these restrictions via a high-frequency survey of individuals, accompanied by an addi-tional ...

Fairness in Markets and Market Experiments

Whether pro-social preferences identified in economic laboratory experiments survive in natural market contexts is an important and contested issue. We investigate how fairness in a laboratory experiment framed explicitly as a market exchange relates to preferences for fair trade products elicited before and at the end of the market experiment. We find that the willingness to buy at a higher price...

Consumption and Subjective Expectations: Empirical Evidence and Structural Estimation

Consumer Debt: Many Borrowers Unaware of Their Interest Rates; Cost Display Influences Likelihood of Accepting Credit Scenario

The consumer debt of households in Germany totals in the triple-digit billions and is characterized by a wide range of interest rates. Despite the high volume of debt, many people do not know the terms of their consumer credit contracts. This report analyzes new survey data on general knowledge about typical forms of consumer credit, such as the overdraft facility and consumer loans. Women tend to ...

The Impact of Price Display on Financial Decisions

Credit decisions play an important role for the economic wellbeing of households. However, the complexity of products and varying price information display makes it hard for consumers to navigate this field. Empirical evidence has important implications for consumer protection policies, as many people fail to make optimal choices for themselves and struggle to understand credit cost information. Presenting ...

GDPR and the Lost Generation of Innovative Apps

Using data on 4.1 million apps at the Google Play Store from 2016 to 2019, we document that GDPR induced the exit of about a third of available apps; and in the quarters following implementation, entry of new apps fell by half. We estimate a structural model of demand and entry in the app market. Comparing long-run equilibria with and without GDPR, we find that GDPR reduces consumer surplus and...