Thema Wettbewerb und Regulierung

Common Ownership Patterns in the European Banking Sector –The Impact of the Financial Crisis

The 19th 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 in the heart...

What is the “Right” Geographic Market Definition?

This paper examines the “right” geographic definition of relevant markets by analysing how excise tax pass-through varies with local competition in the retail gasoline market of Athens, Greece. Using a natural experiment from three unanticipated and exogenous fuel tax hikes in 2010 and detailed station-level price data, we show that average pass-through is almost complete and invariant to the...

Public Communication and Collusion: New Screening Tools for Competition Authorities

Competition authorities increasingly rely on economic screening tools to identify markets where firms deviate from competitive norms. Traditional screening methods assume that collusion occurs through secret agreements. However, recent research highlights that firms can use public announcements to coordinate decisions, reducing competition while avoiding detection. We propose a novel approach to...

Inventors‘ Personal Experience of Natural Disasters and Green Innovation

We show that inventors' personal experiences of natural disasters lead to increased green innovation through changes in their higher-order beliefs about consumer preferences. We match patent records of French and German inventors and a survey of inventive firms to detailed information on natural disasters. This allows us to exploit exogenous variation in inventors’ exposure to natural disasters....

Persönliche Erfahrungen von Erfinder*innen mit Naturkatastrophen und grüner Innovation

Der englische Originaltitel des Seminars lautet: “Inventors‘ Personal Experience of Natural Disasters and Green Innovation” Eine kurze Zusammenfassung zum Vortrag ist nur auf der englischen Veranstaltungsseite verfügbar!

Trump’s tariffs: What escalating trade tensions with the US imply for EU exporters and supply chains

US trade policy has taken a sharp turn away from multilateralism, with sweeping new tariffs posing a serious threat to global supply chains. As the US remains the EU’s largest export market for goods, these measures carry significant repercussions for the bloc. Exports to the US are heavily reliant on a small number of companies and high-value business relationships—making the EU particularly...

Trumps Zollpolitik: Was eskalierende Handelskonflikte mit den USA für EU-Exporteure und Lieferketten bedeuten

Die USA haben in ihrer Handelspolitik eine deutliche Abkehr vom Multilateralismus vollzogen. Neue, weitreichende Zölle stellen eine ernsthafte Bedrohung für die globalen Lieferketten dar. Da die USA nach wie vor der größte Warenexportmarkt der Europäischen Union (EU) sind, haben diese Maßnahmen erhebliche Auswirkungen auf die EU-Staaten. Die Exporte in die USA hängen in hohem Maße von einer...

The 18th 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 in the heart...

Digital Economy Workshop Berlin, 2025

The workshop aims to bring together researchers from Economics, Information Systems, Law, Marketing, Strategy, and related fields who study Digitization. For inquiries dew2025@diw.de Event page