In 2019, GrubHub added 150,000 restaurants to its food-delivery platform ... without their knowledge! The latest PlatformPapers blog asks: What Happens When Platforms Add Suppliers Who Never Signed Up? open.substack.com/pub/platform...

Online review platforms such as #TripAdvisor and #Yelp can help travelers avoid "tourist traps", but what is their effect on restaurant market composition and competition really? Dante Donati discusses these questions in the latest #PlatformPapers blog! open.substack.com/pub/platform...

An oft-heard rebuttal to the dominance of #BigTech firms is that "competition is only one click away." But is competition really only one click away? Michelangelo Rossi discusses his research on Google Maps and the DMA in the latest #PlatformPapers blog. platformpapers.substack.com/p/is-competi...

Food-delivery #platforms didn't 'disrupt' the #restaurant industry, but they still had a meaningful impact on market composition. In the latest #PlatformPapers blog, Manav Raj and JP Eggers explain what happens when delivery platforms come to town. platformpapers.substack.com/p/when-deliv...

Interested in the state of #platform competition research in 2025? Read about it in the Platform Papers 2025 Year in Review post where I discuss the how, what, where, and who of platforms research. platformpapers.substack.com/p/platform-p...

Academic research has long focused on how platforms have enabled innovation & economic growth, while accumulating immense power. But what happens when that power is wielded inconsistently? Annabelle Gawer & Martin Harraca discuss in the latest #PlatformPapers blog. open.substack.com/pub/platform...

What happens to ecosystem diversity and #platform match quality after a platform introduces paid #discovery tools (e.g., Apple's search result ads)? @kai-zzzzzz.bsky.social and co-authors share insights from #Goodreads introduction of paid book giveaways. platformpapers.substack.com/p/the-price-...

Together with Enrico and Alessandro we did a video interview with @faculti.bsky.social covering our ASQ article studying CrossFit gyms responding to a scandal involving the organization's CEO. It nicely shows our different but complementary perspectives on the study.

What happens when a star player leaves the market? In 'normal' markets you'd expect remaining firms to increase their output and sales, but not so much in platform markets. In the latest #PlatformPapers, what happened to Twitch streamers when Ninja left for Mixer? open.substack.com/pub/platform...

In the latest #PlatformPapers blog, @anilrdoshi.com discusses work on #blockbuster projects in the #crowdfunding industry. When a platform has a hit, it triggers additional entry. Entry rates are higher on #Indiegogo, but of higher quality on #Kickstarter. platformpapers.substack.com/p/blockbuste...

#Blockchain based initiatives (e.g. industry platforms for data sharing) are technologically #decentralized, but often they are owned and exploited by just one or a few companies. Read about this decentralization paradox in the latest #PlatformPapers blog. platformpapers.substack.com/p/the-platfo...

Thousands of hotels are bringing a lawsuit against Booking.com. At the heart is Booking's "best price" clause. Such clauses can have myriad anticompetitive effects, seller collusion being one of them. Frank Schlutter explains on the #PlatformPapers blog. platformpapers.substack.com/p/the-impact...

We are hiring at Rotman Strategy in the Fall. Apply here. jobs.utoronto.ca/job/Toronto-...

🚨 Thrilled to share our #AOM2025 symposium w/ @aldona.bsky.social & Yongzhi (Alex) Wang on #competition & #regulation in #platforms. 📅 July 29th | 🕝 1:45PM–3:15PM | 📍 Bella Center More here 👉 www.linkedin.com/posts/mostaj...

🚨Free data alert!! 🚨 Please share. Large new dataset of Amazon product reviews, including full text and photos and product characteristics, with individual *reviews labeled as fake reviews*. I believe this is the first publicly available data of this kind. github.com/bretthollenb...

Platform cooperatives are trying to make the sharing economy more equitable by competing against incumbents (e.g., Airbnb, Uber) from the margin. Read about how they try to do this in the latest #PlatformPapers blog here: platformpapers.substack.com/p/platform-c...

Digital platforms can help fill institutional voids. In the latest #PlatformPapers blog Aparajita Agarwal and Valentina Assenova discuss research showing how M-Pesa's #mobilemoney platform acts as a steppingstone to #financialinclusion for the unbanked.

In the latest PlatformPapers blog, Ken Wilbur and Davide Proserpio discuss why #advertising is an emergent (but understudied) property of successful digital #platforms. A recommended read! platformpapers.substack.com/p/advertisin...

Now in-press at Academy of Management Perspectives: Hypercontinuous Innovation and Demand-Side Learning: Why Digital Platforms Enjoy Longer and More Expansive Market Leadership Positions joint with Melissa Schilling. journals.aom.org/doi/abs/10.5...

Abnormal performance is a normal feature of many digital platform. Read about research in the context of #Udemy by Kaushik Gala, Andreas Schwab, and Brandon Mueller in the latest #platformpapers blog. platformpapers.substack.com/p/star-entre...

In the latest #PlatformPapers blog, Paul Belleflamme, Eric Toulemonde and Martin Peitz argue that using market shares to proxy market power for digital platforms is complicated for several reasons. They offer insights to regulators, investors and managers. platformpapers.substack.com/p/rethinking...

In the latest #PlatformPapers blog Manav Raj explores the effects of adding competitors in digital platforms. In the context of #Spotify he finds that when a major artist releases an album, related artists see their listenership rise by up to 3% and their overall popularity increase by 1–2%.

New Platform Papers blog: Reputation Spillover in Digital Markets - When Agencies Help or Hurt Creators platformpapers.substack.com/p/reputation...

New paper alert: Hypercontinuous Innovation and Demand-Side Learning: Why Digital Platforms Enjoy Longer and More Expansive Market Leadership Positions - joint with Melissa Schiling and forthcoming in SI on #platformregulation at Academy of Management Perspectives.

The 2024 Platform Papers Year in Review is here! What were the top journals for platform competition research? Which were the top-cited papers and the most-read #PlatformPapers blogs? Read all about it and more by following the link. Happy holidays!🎄🎅 platformpapers.substack.com/p/platform-p...

What is the hidden cost of platform diversification? Read all about it in the latest Platform Papers blog, expertly written by David Chung, Maggie Zhou, and Christine Choi.

When it comes to online dating platforms, is more merrier? ❤️ That's the question Jessica Fong tackles in the latest #platformpapers blog. Drawing from an #experiment conducted on a leading #onlinedating #platform she obtained some interesting findings. platformpapers.substack.com/p/network-ef...

We often talk about needing to regulate powerful platforms, but such interventions can have unintended second-order effects. Read the latest #PlatformPapers blog where Allen Li and Gang Wang discuss regulatory interventions on US food-delivery platforms. platformpapers.substack.com/p/regulating...

Smaller slices of a growing pie. How do seller entry and market expansion balance each other out in the context of food delivery platforms? Oren Reshef reports on his excellent research in the latest #platformpapers blog! platformpapers.substack.com/p/smaller-sl...

Tomorrow is D(MA)-Day! The Digital Markets Act, Europe's framework targeted at gatekeeper companies went into effect last year. March 6, is the deadline for gatekeepers to submit their compliance plans. Read about it in the latest PlatformPapers blog. platformpapers.substack.com/p/6-march-is...

How does the entry of blockbusters on a platform affect the other offerings on the platform? In the latest #PlatformPapers blog, Zhiyi Wang and Lusi Yang explore this question in the context of #Kicstarter's #crowdfunding platform. platformpapers.substack.com/p/winner-tak...

In the latest #platformpapers blog, Carmelo Cennamo and Juan Santalo discusse the power of #generativity in platform ecosystems. When is it good and when can it be a bad thing? Some great implications offered as well.

Hey folks, there's two weeks left to submit your best work on digital platforms to the second EU-DPRN conference at UCL School of Management in London (June 27 & 28)! Please share with your networks. eudprn.com

The Platform Papers 2023 Year in Review is here! Read about the state of the literature on platform competition, including the most original empirical context and the Top Ten most cited papers by articles published in 2023. Lots of data! platformpapers.substack.com/p/platform-p...

Excited to announce the 2024 EU-DPRN, European digital platforms research conference at UCL SoM on June 27 & 28! This is the second EU-DPRN conference, which is co-organized by Carmelo Cennamo, Panos Constantinides, and myself. More information and submission form: forms.gle/m4BxY3hmLweV...

Unlocking the power of #freemium. In the latest #platformpapers blog, Yiting Deng, Anja Lambrecht and Yongdong Liu ask does releasing a constrained free version of an #app boost the sales of its paid counterpart and when is this strategy most effective?

Mobile app stores are the new "canonical" setting in platform competition research. These are the two most popular empirical contexts with 33 (consoles) and 30 (mobile apps) studies in the platformpapers.com database, but the trends show that mobile is replacing console.