This July 2024 version of the paper studies a search platform#s incentives to rank firms’ products across sponsored and organic positions, accounting for the incentives of both firms and consumers.
Menu
Welcome to the website of
Maarten Janssen, Professor of
Microeconomics at the
University of Vienna
Welcome to the website of Maarten Janssen, Professor of Microeconomics at the University of Vienna
I am a fellow of the CEPR (London), a member of the Royal Holland Society of Sciences and Humanities, a research associate at ZEW (Mannheim) and an academic affiliate at CEG Europe.
My research focusses on consumer search, auctions and markets with asymmetric information. Below you can read about recent developments regarding my research and under “research” you can read older articles. Please click for other information on the relevant links.
LATEST WORK
What’s new?
This July 2024 version of the paper studies a search platform#s incentives to rank firms’ products across sponsored and organic positions, accounting for the incentives of both firms and consumers.
The paper shows that in search markets an influencer who recommends a product to her followers improves consumer surplus and total welfare despite the firm paying for her recommendation.
The paper is now accepted for publication at Rand Journal of Economics.
This paper studies competitive markets where consumers have to inspect products to see whether they like them. It shows how firms strategically choose their product return strategy to induce consumers to buy their product before inspecting it. It asks whether from an efficiency point of view the market creates too many or too few products returns.
This paper shows that word-of-mouth communication can prevent the well-known Diamond paradox to arise in a sequential search model. Consumers that do not search themselves may get informed about more prices and buy at the lowest price.
We analyze markets, such as those for airline tickets and hotel accommodations, where firms sell time-dated products and have private information about unsold capacities. We show that firms have less market power as under complete information.
This paper shows that in consumer search markets discriminatory trade promotions create more profits for manufacturers than uniform pricing. The paper is now published in the 2023 spring issue of Marketing Science.
The paper studies how consumer search affects pricing when consumers observe the baseline price
of their current provider and decide whether or not to search for an alternative tariff at an online platform.
The paper is now published in the August 2023 issue of Journal of Political Economy: Micro.
This July 2024 version of the paper studies a search platform#s incentives to rank firms’ products across sponsored and organic positions, accounting for the incentives of both firms and consumers.
The paper shows that in search markets an influencer who recommends a product to her followers improves consumer surplus and total welfare despite the firm paying for her recommendation.
The paper is now accepted for publication at Rand Journal of Economics.
This paper studies competitive markets where consumers have to inspect products to see whether they like them. It shows how firms strategically choose their product return strategy to induce consumers to buy their product before inspecting it. It asks whether from an efficiency point of view the market creates too many or too few products returns.
This paper shows that word-of-mouth communication can prevent the well-known Diamond paradox to arise in a sequential search model. Consumers that do not search themselves may get informed about more prices and buy at the lowest price.
We analyze markets, such as those for airline tickets and hotel accommodations, where firms sell time-dated products and have private information about unsold capacities. We show that firms have less market power as under complete information.
This paper shows that in consumer search markets discriminatory trade promotions create more profits for manufacturers than uniform pricing. The paper is now published in the 2023 spring issue of Marketing Science.
The paper studies how consumer search affects pricing when consumers observe the baseline price
of their current provider and decide whether or not to search for an alternative tariff at an online platform.
The paper is now published in the August 2023 issue of Journal of Political Economy: Micro.