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The 21st Berlin IO Day

The Berlin IO Day is a one-day workshop 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 in the heart of Berlin, one of Europe's most vibrant and intellectually lively...

Aggregate Tax and Spending Multipliers in a Monetary Union

We examine the aggregate effects of government spending and tax changes in a monetary union. We show theoretically that government consumption and government investment shocks have multipliers above 1, and consumption tax and income tax shocks have multipliers below 1. We test the predictions on quarterly euro area data, identifying the four fiscal shocks in a panel structural vector autoregression ...

A Missed Opportunity? Labor Demand and Workforce Diversity

How do labor demand shocks affect workforce diversity in the absence of targeted diversity policies? A conceptual framework illustrates the potential trade-off between the demographic and quality composition of a workforce when there is a positive labor demand shock. Exploiting the German reunification as a natural experiment, we analyze the academic labor market where nearly all social sciences professors ...

AI Adoption by Human Experts: Evidence from Primary Care Physicians

AI can raise productivity by extracting information from rich data, yet little is known about how experts weigh AI-generated signals against established decision-support tools. We conduct a nationwide survey experiment with 372 Danish primary care physicians (21.5% of all clinics), who make diagnostic and treatment decisions on urinary tract infection vignettes before and after receiving a diagnostic ...

Does Having Daughters Affect Political Preferences? Using Meta-Analytic Tools on Many Surveys

This study investigates whether having daughters impacts political preferences and whether this effect varies across European countries. We estimate effect sizes for 39 countries in the European Social Survey (n = 156,236) and aggregate estimates using random-effects meta-analysis, following a preregistered analysis plan. We find significant evidence that having daughters increases the preference for ...

Recovery of the German economy weaker than expected in the spring forecast

Energy Price Shock Slows German Economy - Global Growth Remains Moderate

The German economy is failing to gain momentum after three weak years. At the turn of the year, a modest recovery appeared to be taking hold, driven primarily by domestic demand and private consumption. However, in addition to the structural problems already present, the German economy must now also contend with the consequences of the Iran War. The energy price shock has halted the recovery before ...

Price Environments and Residence-Duration Profiles in Residential Heating Expenditures: Evidence from Germany

Heating-expenditure profiles over a residential spell vary systematically with aggregate gas price environments. Using 30 years of German SOEP panel data with 16,055 residential spells among renter households, this paper estimates a negative cross-derivative of log heating and hot-water expenditures per square meter with respect to residence duration and the log gas price index (δ = -0.0045, ...

Quantitative Trade with Ships

This paper highlights an underexplored margin of heterogeneity that shapes resilience to disruptions in global shipping - the differential reliance of countries and sectors on specific categories of vessels. We combine US bills of lading records with ship registry and AIS-based port call data to document new stylized facts on vessel deployment, including switching patterns across ships, country specialization ...

An Advanced Reliability Reserve Incentivizes Flexibility Investments while Safeguarding the Electricity Market

To ensure security of supply in the power sector, many countries are considering capacity mechanisms. Simultaneously, the expansion of variable renewables increases the need for power sector flexibility, with promising options on the demand side. We analyze how a centralized capacity market and an advanced reliability reserve with a moderately high activation price affect demand-side flexibility investments ...