The use of informal finance is primarily discussed in the context of developing countries and start-up businesses. Survey data used in this study, however, shows that ``Family and Friends'' (F\&F) finance is also remarkably widespread among established firms in Germany, a highly developed...

This paper presents of a model of banking in order to study why different agents may prefer a 'regulation by the market' over the regulation by a governmental agency, and it illustrates the interaction of two sectors regulated in such alternative ways. Financial intermediaries can operate either...

We study a banking model in which regulatory arbitrage induces the existence of shadow banking next to regulated banks. We show that the size of the shadow banking sector determines its stability. Panic-based runs become possible only if this sector is large. Moreover, if regulated banks conduct...

We show that nonbanks (funds, shadow banks, fintech) reduce the effectiveness of tighter monetary policy on credit supply and the resulting real effects, and increase risk-taking. For identification, we exploit exhaustive US loan-level data since 1990s and Gertler-Karadi monetary policy shocks....

The growing popularity of fintechs has led the Financial Stability Board (FSB) to publish considerations about the effects of this emerging industry on stability and efficiency in the financial sector. Against this background, this paper compares the effects of competition and collaboration...

In a sequential auction of perfect substitutes, we analyze the consequences of the seller's incapacity to commit perfectly to a reserve-price schedule. When facing such a seller, the bidders have strong incentives not to reveal during the earlier rounds of the auction any information about their...

Previous research shows that firms may offer excessively high (and shrouded) add-on prices in competitive markets when some consumers are myopic. We analyze the effects of regulatory intervention via educating myopic consumers on equilibrium strategies of firms, consumer protection and welfare....

A frequent feature of information structures is that they generate signals which are not mutually independent, but rather rely on a common set of underlying information. Using a simple experimental design, we show that in such contexts many people neglect correlations in the updating process,...

When sellers join a platform to sell their products, the platform operator may restrict their strategic decisions. In fact, several platform operators impose most-favored treatment or no-discrimination rules (NDRs), asking sellers not to offer better sales conditions elsewhere. In this paper, I...

An astonishing 33 % of all export spells in Danish data turn out to be isolated single-month one-off export transactions. On average, for an export-active firm, one-off events generate 17 % of foreign sales. These patterns do not sit well with available trade models. To reconcile theory with the...