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Notes on the platform economy

Shorter-form commentary between the papers: new findings, method notes, and takes on platform governance and performance in the wild.

The Loyalty Spillover: How a Food Delivery Subscription Feeds the Restaurant Down the Block

November 2026 · 10 min read

A subscription built to lock you into one delivery app does not just capture a bigger share of your online orders. A new study finds it also sends you out the door to eat at the independent restaurant three blocks away, and the effect fades once that restaurant is a car ride instead of a walk.

platform ecosystemsfood delivery and subscription commerce

The Half-Finished Draft Converts Better Than the Finished One

November 2026 · 11 min read

A field experiment on a generative AI platform found that showing users part of what they just co-created, and holding the rest back, drove more registrations than revealing everything or revealing nothing at all.

growth & engagementgenerative ai / creator tools

The Eavesdropping Trap: Why Letting Users Peek at Paid Answers Can Backfire

October 2026 · 10 min read

Paid Q&A platforms keep adding a cheap option to view an answer someone else already bought, expecting a new revenue stream on top of personalized consulting. A game-theoretic model of the mechanism shows the cheap channel often cannibalizes the expensive one, and can even push up what the expensive one costs.

pricing & monetizationpaid q&a and expert-consulting platforms

ChatGPT Didn't Kill Stack Overflow. It Fired the Easy Questions.

October 2026 · 12 min read

A rigorous study of Stack Overflow finds ChatGPT cut question volume by an average of 14 percent, rising toward 28 percent over time, but almost all of the loss is concentrated in routine, well-documented queries. The hard questions survived, and got more valuable.

data & aionline q&a platforms

The Badge That Taxes Everyone Who Doesn't Wear It

October 2026 · 10 min read

Airbnb built Plus to reward its best hosts with a visible quality badge. A new study finds the badge also quietly drained revenue from hosts who changed nothing at all, simply by making them look riskier standing next to it.

trust & reputationpeer-to-peer short-term rentals

The Jack-of-All-Trades Wins Alone. The Crowd Loses Together.

October 2026 · 13 min read

Letting contributors roam freely across task types boosts each person's own standing on an open innovation platform, but a crowd made entirely of roamers quietly produces less, because the breakthroughs depend on focused groundwork that the roamers stopped laying.

ecosystems & innovationcrowdsourced open innovation platforms

Blocking the Exit Doesn't Protect Your Platform. It Protects Mediocre Creators.

October 2026 · 11 min read

A game-theoretic model of TikTok and YouTube shows that letting a creator link out to a rival platform can raise your profits, because the threat of losing viewers is what forces the creator to actually get better.

governancecreator economy / digital-content platforms

Your Questions Are Not Getting Lazier Because of AI. They Are Getting Harder.

October 2026 · 10 min read

When Stack Overflow's users got a brief, real taste of ChatGPT-written answers before the platform banned them, the textbook fear was fewer and lazier questions. The natural experiment shows the opposite: more questions, longer, more novel, and more upvoted.

data & aideveloper q&a platforms

Your Power Users Are Living Double Lives. Your Dashboards Don't Know It.

October 2026 · 11 min read

A new Bayesian deep-learning model built for a large knowledge-sharing platform shows that the same person's reading habits and posting habits are entangled signals about one preference, not two unrelated behaviors, yet most platforms still run a reader model and a creator model that never talk to each other.

data & aiknowledge-sharing & content platforms

The Interface Update That Grows Your Ecosystem Also Grows Android's

October 2026 · 11 min read

Across Apple's five major iOS releases, the interface change that gets developers building more on iOS is the same one most likely to send them off to also build for Android next, and the move that keeps them exclusive is the one that makes them do less.

governancemobile app ecosystems

The Seller Blind Spot That Caps Every Marketplace's Growth

October 2026 · 10 min read

Retail platforms pour their analytics budgets into guessing what buyers will click next. A review of the field's own practice and research suggests the real limit on marketplace performance usually sits on the side nobody bothered to measure well: the sellers.

data & aie-commerce marketplaces

Stop Copying Apple's App Store. Your Ecosystem May Need the Opposite.

October 2026 · 13 min read

A new discriminating-alignment theory of ecosystem governance argues the architecture that wins isn't the one that grabs the most control, it's the one whose coordination costs match the environment's uncertainty. Apple, Kubernetes, and Tesla's charging standard show why centralizing on reflex, or decentralizing on principle, is itself the error.

governanceecosystems & innovation

The Psychology Gap: Why Austin Tips and El Paso Doesn't

October 2026 · 11 min read

A dataset of 3.2 million personality profiles shows that network-effect platforms adopt earlier in regions higher in Openness to Experience, independent of income, density, or infrastructure, a variable no market-entry spreadsheet tracks, and skipping it can make you misread your own success.

network effectsplatform market entry

Deleting Posts Won't Fix Social Media. The Ranking Engine Will.

October 2026 · 11 min read

Platforms keep fighting misinformation and polarization at the level of individual posts. A new Journal of Management Studies commentary argues the real externality sits upstream, in how attention is allocated and monetized.

governancesocial media / digital platforms

Your Platform's Biggest Risk Lives One Layer Down

October 2026 · 11 min read

Every platform is also somebody else's complementor, and the governance call that ends a business model is rarely made by a horizontal rival, it is made by the layer underneath.

governancedigital platforms, cloud infrastructure, and mobile ecosystems

Your AI Feature Checklist Is Measuring the Wrong Thing

October 2026 · 11 min read

Snapchat and Spotify shipped the same kind of generative-AI feature within weeks of each other in 2023. One cratered the app's rating to 1.67 stars. The other became one of the most-repeated features in the product. The AI was never the variable that decided which.

complementorsconsumer apps / ai complements

The Binge Discount: Why Dropping a Whole Season at Once Can Cost a Platform 39% of Its Revenue

October 2026 · 13 min read

A structural model of a Chinese romance-reading app finds that releasing an entire book the moment it is ready cuts platform revenue by 39% relative to drip-feeding it, and that the most profitable policy isn't binge or weekly, but 40% now and the rest later.

governancestreaming & serialized content platforms

The Anonymity Markup: Why Saying No to Tracking Can Cost You More

October 2026 · 12 min read

A new pricing model finds that when a platform can no longer tell privacy-conscious shoppers apart, it does not let the uncertainty go to waste, it folds them into a group price, and that group tends to pay more.

pricinge-commerce marketplaces / data privacy

The Platform Pivot Dies Indoors

October 2026 · 11 min read

Incumbents launching a platform brace for a raid by outside competitors. A new study of a financial-services SME-lending platform, and a decade of UK open-banking data, both show the kill shot comes from inside the building: the business units and partners who already hold the data and won't let go of it.

governancefinancial services / sme lending platforms

The Outside Executive Doesn't Add Innovation. They Redirect It.

October 2026 · 11 min read

A longitudinal study of startups in the Hadoop ecosystem finds that hiring a senior technology executive from outside the firm boosts expansion into new platform layers while quietly shrinking the effort spent deepening the layer the startup already owns.

ecosystems & innovationcloud/big-data software platforms

The Agent Doesn't Care Who Paid for the Ad

October 2026 · 11 min read

Google's auction, Amazon's sponsored shelf, and a decade of affiliate SEO all depend on a human clicking through a list that someone paid to shape. An agent that works for you, not the platform, has no structural reason to honor that ranking at all.

governancesearch & ai agents

The Scholar's Mistake: Treating Staking and Grinding as Two Separate Jobs

October 2026 · 13 min read

On a tokenized platform, the capital you stake and the hours you grind come out of the same wallet and the same clock, and a fixed split between the two is not prudent risk management, it is a static guess that a model watching the platform's own feedback loop can beat.

gig & labortokenized/web3 platforms (play-to-earn, gamefi)

The Data Moat Has a Trapdoor

October 2026 · 12 min read

A new formal model shows that a rival's mountain of data does not automatically win. Under identifiable conditions, a sharper algorithm walks straight through the moat that was supposed to keep it out.

competitive strategydata-intensive platform markets

The Job Everyone Sees Is the One Nobody Can Actually Get

October 2026 · 11 min read

Timee's recommender pushed workers toward the most-favorited shift templates, the ones with the fewest real openings, while genuinely unfilled jobs went begging for exposure. A capacity-aware fix raised the odds a worker actually lands a job from 57.6% to 70.0%.

matching & designspot-work / gig labor marketplaces

YouTube Kids Doesn't Reward Learning. It Rewards Motion.

September 2026 · 12 min read

A three-study analysis of more than 32,000 children's videos finds that visual motion, not story, teaching, or character, is what keeps a young child's eyes from wandering, and platforms that rank on watch time are quietly training creators to supply more of it.

creators & contentchildren's video platforms

Uber Built the App for San Francisco. Accra Rewired It.

September 2026 · 12 min read

Uber's ride-hailing affordances were engineered for gridded streets, card networks, and predictable regulators. Ghana had none of the three, so drivers and riders quietly rebuilt the platform around it, using WhatsApp calls, cash, and gamed pickup pins instead of the features Uber shipped.

performanceride-hailing, sub-saharan africa

The Product You Wanted Was on Page Four

September 2026 · 12 min read

A formal model of platform design shows why hiding your best match in a pile of worse ones can be the profit-maximizing move, not a bug in the algorithm. Amazon's antitrust file and the EU's €2.42 billion Google case read like its appendix.

competitionretail media & e-commerce search

Losing the Market, Owning the Task

September 2026 · 10 min read

A national survey of AI-assistant users finds ChatGPT commanding the majority and Gemini a solid second, yet the data on trust and task allocation show platform share is only half the contest underway.

competitionconsumer ai assistants

ChatGPT Didn't Push Freelancers Off the Platform. It Trapped Its Best Ones in Place.

September 2026 · 11 min read

The standard fear was that AI would hit the most skilled freelancers hardest and chase the exposed ones off the platform. New evidence says the opposite: exposed freelancers stayed and bid their way upmarket, and it was the deepest experts in the threatened categories who got stuck.

performancegig & freelance labor

The Best Onboarding Trick for AI Products Is Showing Users Less

September 2026 · 10 min read

A field experiment on a generative AI platform found that revealing only part of what users just created, not all of it and not none of it, drove more sign-ups than either extreme, upending the instant-gratification instinct behind most AI product design.

governancegenerative ai platforms

Cut the Commission, Feed the Competitor: The Take-Rate Trap

September 2026 · 11 min read

Pricing, matching, and bundling look like three separate dials on a platform's control panel. A single antitrust complaint against Amazon shows they are wired to the same circuit.

platform pricingonline marketplaces

Uber One Doesn't Reward Riders. It Quietly Subsidizes Drivers.

September 2026 · 11 min read

A new Information Systems Research paper shows a platform's loyalty subscription helps whichever side didn't buy it, so copying Uber One without checking who is actually scarce in your market is a wealth transfer, not a growth strategy.

performancesharing economy / gig platforms

The Stance Tax: Why Launching an AI Tool Can Cost You Your Best Creators

September 2026 · 10 min read

A new field study of two Chinese art platforms finds that shipping an AI image generator drove creators away, while banning AI-made art drew them in, because creators were reading a signal, not testing a feature.

platform complementorscreator/visual-arts platforms

A Claimed Title Beats a Verified Badge. Every Single Time.

September 2026 · 11 min read

Users lock in an opinion after a handful of consistent posts, and a self-declared "Dr." wins more trust than a verified account with a huge following. The judgment forms before anyone checks a fact, and a correction issued afterward mostly fails to undo it.

trust and identity signalssocial media platforms

Interoperability Doesn't Set Users Free. It Redraws Who Holds The Network.

September 2026 · 12 min read

A new formal model of platform interconnection shows that opening the wall helps a small rival's users, drains a giant's edge, and does either depending on the shape of the network, not on any general virtue of openness.

platform competition & regulationmessaging, social networking & telecom

Nothing New Happened. The Market Moved Anyway.

September 2026 · 10 min read

Researchers added old, already public litigation news back onto the Wikipedia pages of public firms and watched retail trading volume jump 15.7% and bid-ask spreads narrow 6.9 basis points, on stories the market had already priced in years earlier.

platform information effectsretail investing / knowledge-sharing platforms

Reviewer Honesty Follows a Smile Curve. The Middle Is Where It Breaks.

September 2026 · 12 min read

Newcomers rate candidly because they have not yet learned the room. Then they learn it, inflate for years to keep the peace with whoever they are rating, and only turn honest again once their loyalty shifts from that one person to the community itself.

reputation systemsonline reviews and peer-to-peer platforms

Practice What You Preach Is Not a Cliché. It Is a Governance Mechanism.

September 2026 · 11 min read

Physicians who spend unpaid hours answering strangers' questions on a Chinese health Q&A platform go on to prescribe less and keep hospital stays closer to clinical guidelines, not because anyone is watching, but because they already said the words in public under their own name.

governancedigital health & telehealth platforms

The Waiting Game: How Gig Platforms Turn Your Uncertainty Into Underpay

September 2026 · 12 min read

New theoretical work shows a platform can hold its total wage bill almost flat no matter how large its workforce grows, simply by posting a low price and waiting for whoever hasn't yet learned her own costs. It also shows why a mass movement can't stop that trick, but the right handful of workers can.

algorithmic pricinggig labor platforms

Silence the Stars, and the Middle Class Disappears First

September 2026 · 12 min read

Platforms that demote their biggest creators expect attention to flow down and lift everyone. New research on a major creator platform finds it flows down unevenly, past the middle, straight to the bottom.

governancecreator economy

The Bargain With Your Killer

September 2026 · 10 min read

Taxi fleets that Uber spent a decade trying to destroy are now voluntarily plugging themselves into Uber's app. New research shows exactly when that trade pays off, and when it just outsources the next disruption.

coopetition strategyride-hailing and taxis

Bad Reviews and Disagreeing Reviews Send New Entrants in Opposite Directions

August 2026 · 10 min read

A rival's low star average tells a new app to sharpen its core feature and differentiate hard. A rival's scattered, disagreeing star ratings tells the same new app to broaden out and copy what already works. Same review data, opposite move.

competition & complementorsmobile app marketplaces

Sharing Your Market Data Doesn't Help Sellers Sell More. It Helps Them Build Better Products.

August 2026 · 11 min read

Give a retailer platform-level market intelligence and the natural guess is that they'll spend it on price cuts or ad bids. They spend it on invention instead: new SKUs, wider assortments, and sales gains that price and advertising never touch.

data & network effectse-commerce marketplaces

Royalty Revenue Doesn't Calm Console Wars. It Arms Them.

August 2026 · 14 min read

When a console expects a cut of every game a gamer buys later, the smart move is to slash the price of the box today and send the bill to the publisher. A new ecosystem model of consoles, publishers, and gamers shows why sharing more revenue makes platforms fight harder, not softer, and why chasing ever more multihoming eventually stops paying off.

competition & complementorsgaming platforms / console ecosystems

Reviews Regulate the Dining Room. Not the Kitchen.

August 2026 · 11 min read

Yelp reviews carry a real, causal hygiene signal, but only for the problems a diner can catch with their own senses. Mistake that partial signal for full oversight and you get a comforting illusion exactly where regulation still has to do the work.

governanceconsumer reviews and food-safety regulation

Your "Global" Platform Is Actually Four or Five Regional Ones, and Nobody Designed It That Way

August 2026 · 11 min read

A single hour of time-zone offset cuts cross-region views by 13.6 percent and cross-region votes by 20.9 percent on Stack Overflow, a fully asynchronous, fully global platform. The culprit is not geography. It is the most ordinary ranking choice on the internet: reward whoever is awake right now.

platform architecture & ranking designglobal online communities

Slow-Rolling a Quality Tier Is the Riskiest Way to Launch One

August 2026 · 10 min read

Sellers left outside a new quality-controlled submarket are not safe by default. They lose early to a newly credible rival tier and recover only after adoption crosses a tipping point, which means a cautious rollout maximizes the time everyone spends in the worst zone.

platform quality signalsresale and secondhand marketplaces

Auctions Do Not Always Beat Fixed Pricing. On a Thin Creator Market, They Lose.

August 2026 · 11 min read

Real-time bidding is the mechanism ad tech converted to decades ago because it was supposed to be the fair, efficient one. A new analytical model of short video promotion tools shows it only wins once creators are genuinely crowding each other out, and even then it rewards the extremes of content quality while squeezing everyone in the middle.

platform pricing mechanism designcreator economy / short video and content platforms

Personalization Was Supposed to Help the Little Guy. It Did the Opposite.

August 2026 · 11 min read

A 1.7-million-observation study of algorithm upgrades on a food-sharing platform found that popularity-based ranking, the cruder of the two systems, narrowed the gap between top and bottom sellers, while personalization, the one marketed as fairer, widened it by funneling ever more revenue back to the same stars.

governancerecommendation-driven marketplaces

Showing Women Fewer Profiles Got Them Better Matches

August 2026 · 13 min read

A matrimonial platform restricted which men could even see a woman's profile. Unwanted requests fell, matches nearly doubled, and women started reaching out first, without men doing any worse.

platform designonline dating and matrimonial matching

The Rating System That Cancels Its Own Bias

August 2026 · 11 min read

New minority drivers on a large French ridesharing platform earn 11.6 percent less than comparable peers the moment they start, not because they perform worse, but because passengers expect them to. Customer reviews erase almost the entire gap, and they erase it fastest exactly when reviews pile up fastest.

reputation systemsridesharing and gig platforms

The Marketplace That Made Brands Stop Chasing Follower Counts

August 2026 · 10 min read

When RedNote gave brands a searchable, transparent way to compare creators, sponsorship dollars didn't pile up further on the platform's biggest names, across more than 152,000 posts from 1,161 influencers, they shifted decisively toward the middle tier.

platform complementorscreator economy / social commerce

Cloud Computing's Efficiency Miracle Is Also Its Throttling Machine

August 2026 · 11 min read

The statistical predictability that lets AWS, Google Cloud, and Azure pool millions of workloads into cheap, reliable capacity is the same predictability that lets them safely slow down or interrupt lower-paying customers, Spot Instances discounted up to 90% but reclaimable with a two-minute warning are the mechanism working in plain sight.

platform pricingcloud computing

Trapped Complementors Don't Quit. They Route Around.

August 2026 · 12 min read

Spotify and Epic Games could never credibly threaten to leave Apple's App Store, so instead they spent five years building coalitions and courting regulators, and walked away with a €1.84 billion fine against Apple, a mandated end to US anti-steering rules, and a 15 percent commission tier that didn't exist before they started fighting.

governancemobile app platforms & digital ecosystems

Cutting Your Platform Fee Doesn't Buy You Better Apps. It Buys You More Bad Ones.

August 2026 · 12 min read

When Apple and Google halved their cut for small developers, the wave that followed wasn't hidden talent. A study of both fee cuts finds the fairness move drew a flood of lower-quality, less original apps and left the platform to pay the bill in catalog noise.

performanceapp stores & complementor fees

Your Ratings Do Not Measure Quality. They Measure Who Holds Power.

August 2026 · 16 min read

When the rated side controls the rater's livelihood, your five stars are a fear reading, not a quality signal. Break the retaliation channel or govern on a flattering illusion.

governancetwo-sided reputation systems

When a Rival Platform Enters, One Big Sale Will Not Save You

August 2026 · 9 min read

The complementors most likely to defect are the ones your broad loyalty programs never reach. Here is how to spend your retention budget across food delivery, e-commerce, and home-sharing.

governancecomplementor strategy

Creator Platforms Don’t Govern Creators. Their Networks Do.

July 2026 · 6 min read

Multi-channel networks capture up to 70% of streamer revenue by telling talent a different story about the algorithm than the one they tell themselves. We call it interpretive arbitrage.

governancecreator platforms

Raise Gig Workers’ Pay Floor. Their Earnings Stay Flat.

July 2026 · 6 min read

New York and Seattle data show delivery platforms neutralize a minimum-pay mandate through three offsetting levers: fee pass-through, tip compression, and task rationing. We call it the Wage Floor Offset.

governancefood delivery

The Friction Dividend: Why Ride-Hailing Apps Don’t Need to Be Cheaper

July 2026 · 5 min read

A one-week audit of 2,238 matched trips found a 14% price gap between Uber and Lyft, and riders check the other app just 16% of the time. The margin platforms collect when you don’t compare.

performanceride-hailing