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148 Ergebnisse, ab 41
Diskussionspapiere 1918 / 2020

Common Ownership in the US Pharmaceutical Industry: A Network Analysis

We investigate patterns in common ownership networks between firms that are active in the US pharmaceutical industry for the period 2004-2014. Our main findings are that “brand firms” — i.e. firms that have R&D capabilities and launch new drugs — exhibit relatively dense common ownership networks with each other that further increase significantly in density over time, whereas the network of “generic ...

2020| Albert Banal-Estanol, Melissa Newham, Jo Seldeslachts
Externe referierte Aufsätze

Abuse of Dominance and Antitrust Enforcement in the German Electricity Market

In: Energy Economics 92 (2020), 104936, 15 S. | Tomaso Duso, Florian Szücs, Veit Böckers
Diskussionspapiere 1894 / 2020

Learning from Data and Network Effects: The Example of Internet Search

The rise of dominant firms in data driven industries is often credited to their alleged data advantage. Empirical evidence lending support to this conjecture is surprisingly scarce. In this paper we document that data as an input into machine learning tasks display features that support the claim of data being a source of market power. We study how data on keywords improve the search result quality ...

2020| Maximilian Schäfer, Geza Sapi
Externe referierte Aufsätze

Where Does the Fair Trade Money Go? How Much Consumers Pay Extra for Fair Trade Coffee and How This Value Is Split along the Value Chain

Fair Trade certification aims at transferring wealth from the consumer to the farmer; however, coffee passes through many hands before reaching final consumers. Bringing together retail, wholesale, and stock market data, this study estimates how much more consumers are paying for Fair Trade-certified coffee in US supermarkets and finds estimates around $1.50 per lb. The study then assesses how this ...

In: World Development 133 (2020), 105006, 12 S. | Helene Naegele
Diskussionspapiere 1849 / 2020

Testing the Superstar Firm Hypothesis

The superstar firms model provides a compelling explanation for two simultaneously occurring phenomena: the rise of concentration in industries and the fall of labor shares. Our empirical analysis confirms two of the underlying assumptions of the model: the market share increases and the labor share decreases with increasing firm-level total factor productivity, providing support for the superstar ...

2020| Alexander Schiersch, Caroline Stiel

Three Essays on the Economics of Online Platforms

Die digitale Ökonomie hat unzählige Märkte nachhaltig verändert. Insbesondere Online Plattformen bieten eine noch nie dagewesene Auswahl an Produkten, gekoppelt mit innovativer Technologie, die das Zusammenfinden von Angebot und Nachfrage vereinfacht, Vertrauen aufbaut und Suchkosten reduziert. Gleichzeitig hat die neuartige Natur dieser Plattformen dazu geführt, dass sie teilweise mit den etablierten ...

Berlin: TU Berlin, 2020, XIII, 157 S. | Kevin Ducbao Tran
Diskussionspapiere 1890 / 2020

Airbnb and Rents: Evidence from Berlin

Cities worldwide have regulated peer-to-peer short-term rental platforms claiming that those platforms remove apartments from the long-term housing market, causing an in- crease in rents. Establishing and quantifying such a causal link is, however, challenging. We investigate two policy changes in Berlin to first assess how effective they were in regulating Airbnb, the largest online peer-to-peer short-term ...

2020| Tomaso Duso, Claus Michelsen, Maximilian Schäfer, Kevin Ducbao Tran
Diskussionspapiere 1889 / 2020

Airbnb, Hotels, and Localized Competition

The rise of online platforms has disrupted numerous traditional industries. A prime example is the short-term accommodation platform Airbnb and how it affects the hotel industry. On the one hand, consumers can profit from Airbnb due to an increased number of choices and lower prices. On the other hand, critics of the platform argue that it allows professional hosts to operate de facto hotels while ...

2020| Maximilian Schäfer, Kevin Ducbao Tran
Diskussionspapiere 1888 / 2020

Partitioned Pricing and Consumer Welfare

In online commerce, obfuscation strategies by sellers are hypothesized to mislead consumers to their detriment and to the profit of sellers. One such obfuscation strategy is partitioned pricing in which the price is split into a base price and add-on fees. While empirical evidence suggests that partitioned pricing affects consumer decisions through salience effects, its consumer welfare consequences ...

2020| Kevin Ducbao Tran

Evaluation Support Study on the EU Rules on State Aid for Access to Finance for SMEs: Final Report

Brussels: European Union, 2020, 242 S. | Tomaso Duso, Joanna Piechucka [u.a.]
148 Ergebnisse, ab 41