Diese Arbeit wurde mit dem Hochschulpreis des Deutschen Aktieninstituts (1. Preis) ausgezeichnet. Die Jury würdigte besonders die hohe Praxisrelevanz der Arbeit sowie die ausführlichen statistischen Analysen. Seit 1998 können deutsche Aktiengesellschaften den Erwerb eigener Aktien als...

The Euro area faces zero inflation paired with low economic growth, at a time when the effective lower bound on nominal interest rates and large budget deficits are constraining conventional monetary and fiscal policy. In this article, we discuss the theoretical and empirical evidence on...

We analyze the impact of the French 2012 financial transaction tax (FTT) on trading volumes, stock prices, liquidity, and volatility. We extend the empirical research by identifying FTT announcement and short-run treatment effects, which can distort difference-in-differences estimates. In...

We analyze empirical links between the perceived tail-risk of inflation, the policy rate, longer-term interest rates, and equity prices in the U.S. Their simultaneous changes enable us to distinguish between a systematic and "exogenous" response to monetary-policy news. And, those tail...

We consider a carbon emissions tax announced today, but implemented after a known time-lag. Before implementation, the announcement induces higher emissions than without intervention. In welfare terms, this adverse announcement effect could more than outweigh the gain after tax implementation....

The current macro-economic and financial conditions remain extremely challenging for the European insurance sector. Under the ongoing low yield environment insurers are changing their business models and looking for new investment and business opportunities to improve their profitability and the...

Unconventional fiscal policy uses announcements of future increases in consumption taxes to generate inflation expectations and accelerate consumption expenditure. It is budget neutral and time consistent. We exploit a unique natural experiment for an empirical test of the effectiveness of...

When the US Bureau of Labor Statistics releases new numbers, in theory it should make no difference whether the press release emphasizes the most recent 1-month number, which is what it does, or the 12-month number, as many other countries’ statistical agencies do. This paper offers the...

In this paper, we introduce a new Bayesian approach to explain some market anomalies during financial crises and subsequent recovery. We assume that the earnings shock of an asset follows a random walk model with and without drift to incorporate the impact of financial crises. We further assume...

Produktinnovationen sind für Unternehmen von großer Bedeutung für deren langfristige Existenzsicherung. So ist fast die Hälfte aller deutschen Unternehmen innovationstätig und verfügt über hohe Innovationsausgaben. Den hohen Innovationsausgaben stehen hohe Misserfolgsquoten gegenüber....

In dieser Dissertation werden drei Corporate-Finance-Fragestellungen empirisch analysiert. Kapitel 1 untersucht, ob ein Zusammenhang besteht zwischen dem Ergebnis von Aktionärsabstimmungen zu Unternehmensübernahmen und kurzfristigen Kursreaktionen, sowie kurz- und langfristiger...

Unconventional fiscal policy uses announcements of future increases in consumption taxes to generate inflation expectations and accelerate consumption expenditure. It is budget neutral and time consistent. We exploit a unique natural experiment for an empirical test of the effectiveness of...

Unconventional monetary policies (UMPs) by the Federal Reserve, the European Central Bank, the Bank of England and the Bank of Japan exert important spillover effects on asset prices in Switzerland if market anticipation of UMP announcements is properly accounted for. Using a broad event set and...