The concept of entrepreneurial ecosystems has been used as a framework to explain entrepreneurial activities within regions and industrial sectors. Despite the usefulness of this approach, the concept is under-theorized, especially with regard to the evolution of entrepreneurial ecosystems. The...

From a macro perspective, inventor networks are characterized by rather stable structures. However, the high levels of fluidity of inventors and their ties found in reality contradicts this macro pattern. In order to explain these contradicting patterns, we zoom in on the intermediate group...

We estimate a Markow-switching dynamic factor model with three states based on six leading business cycle indicators for Germany preselected from a broader set using the Elastic Net soft-thresholding rule. The three states represent expansions, normal recessions and severe recessions. We show...

Membership platforms allow creators to crowdfund a monthly income, while campaigns on conventional reward crowdfunding portals aim to reach a specified funding target within a pre-set period. We study transaction-level data from Patreon, the biggest membership platform, to gain insights about...

New business formation plays an important role for economic development. Therefore, policy makers put emphasis on fostering start-up activity. Aims and scope of entrepreneurs can be just as heterogeneous as the structure of new ventures. The project "New business formation and the labor market...

Crowdinvesting emerged recently as an alternative way of funding for start-up projects. Our dataset consists of all pledges made at Companisto, one of the largest crowdinvesting platforms in Europe. Using cluster analysis based on individual investment histories, we find that crowdinvestors...

A growing number of studies identify a generalized slowdown in labor productivity growth. The very existence of the slowdown ignited a series of academic debates suggesting that secular stagnation or "mismeasurement" problems are at the root of the observed trends. We posit that the composition...

Interactions between players with private information and opposed interests are often prone to bad advice and inefficient outcomes, e.g. markets for financial or health care services. In a deception game we investigate experimentally which factors could improve advice quality. Besides advisor...

While mature capital markets in Western economies suffer from a significant drop in listed companies for two decades, the number of listings at stock exchanges on the African continent is increasing and the importance of stock exchanges for equity issues is growing. This not only raises...

This paper reviews the empirical evidence concerning the regional emergence of innovative new businesses. It is argued that analyses using aggregate data that focus on the regional level and do not account for career patterns of innovative founders are of limited value in guiding policy that is...