Business & Markets
Pricing, competition, advertising, and market structure — data stories and teaching cases from the business world.
26 pieces
AppChat FRED
Chat with the Federal Reserve Economic Data API. Explore economic indicators, time series, and datasets through natural conversation—powered by cached data for instant responses.
TeachingFast-Food Share of Wallet: COVID Impact
How did the pandemic redraw where consumers spent their fast-food dollars? A share-of-wallet dashboard that benchmarks chains against the category through the shock and recovery.
AppFAL Campaign Studio — AI Marketing Case Studies
Teaching case studies and FAL-powered tools for generative AI in creative marketing — study real campaigns, then turn a strategic brief into production-ready image assets.
TeachingNYC Airbnb: A Listings Atlas
Explore tens of thousands of NYC listings by neighborhood, room type, and price — a worked example of how exploratory views turn a raw marketplace dump into a map of where supply and money actually sit.
TeachingThe Southwest Effect
Does a low-cost carrier entering a route really pull fares down — and by how much, once you hold distance and demand fixed? A visual walk through the classic regression.
AppWorld Trade Atlas
A bilateral goods-trade explorer — 226 countries × 5,021 products, 1995–2024 (CEPII BACI), with country profiles, comparisons, and stories.
TeachingNewFifty-One Time Series — Reading state home values, 2000–2026
An interactive walk through 26 years of state-level Zillow Home Value Index data: the 2008 bust, the pandemic boom, and why the base date decides who wins.
BlogThe Survivors' Curve
We reported that SEC risk sections tripled. Re-run on the 1,619 companies that filed every year, most of the growth survives the audit — but not the story about why.
BlogThe Week Russian Vodka Vanished
A regression-backed Iowa Liquor teaching case on Russia's invasion, product delisting, and what a difference-in-differences estimate actually measures.
BlogThe Instrument Boom That Arrived Late
Three million Amazon reviews of musical instruments show a pandemic boom that was delayed by a shipping crunch — and a creator-economy shift that never reverted.
BlogThe Risk Section That Ate the 10-K
91,493 annual reports, fifteen years: corporate risk disclosure tripled in length, got harder to read, and learned new words on a schedule you can date.
TeachingCountercyclical Pricing: Progresso Soup
When demand is seasonal and a recession hits, when should a soup brand cut price and when should it hold? Trace promotion, volume, and competitive response across the cycle.
TeachingFast-Food Brand Perceptual Map
Reduce 48 BAV brand attributes into factor-map axes, inspect loadings, cluster fast-food brands, and test how much Brand Asset follows from the latent perception scores.
Milk field experiment
Store-level milk pricing quasi-experiment data with diet soda placebo, whole milk share, flat-pricing treatment, and ZIP income measures.
TeachingNYC Taxi/Ride-Hail: Uber & Lyft at the COVID Emergency
Trace Uber and Lyft rides across NYC pickup zones as demand breaks around the March 2020 emergency declaration, then compare the late-April floor by borough and zone.
Political books review corpus
Amazon-style political and business book reviews with ratings, text, review metadata, product description, category, price, and reviewer fields.
Progresso pricing workbook
Teaching workbook with demand, brute-force price search, solver, analytical pricing, seasonal segmentation, and cross-price interpretation tabs.
Progresso soup scanner data
Store-week style scanner data for Campbell, private-label, and Progresso soup volumes and prices, with store geography and local demographics.
TeachingRegression Exercise: Did Southwest Lower Airfares?
The hands-on companion: download the route data, run the regression yourself, and read the coefficients the way a manager would. Built for a live class session.
TeachingRegulation & Demand for Guns
Analyze FBI background-check data to see how regulatory changes, major events, seasonality, and COVID-era shocks changed U.S. firearm demand across states.
RentHop apartment listings
Apartment listing data with address, hot/not label, coordinates, amenities, bathrooms, bedrooms, and price.
BAV fast-food brand perceptions
Brand Asset Valuator-style fast-food brand metrics, market share, and attribute perception percentages.
Beer acquisition tweet sentiment corpus
Tweet corpus around beer-brand acquisition events, with text, source, event timing, acquisition period, URL flag, and date fields.
TeachingDid Goose Island Sell Out?
On March 28, 2011, Anheuser-Busch InBev acquired Chicago’s Goose Island. This case treats the acquisition as a natural experiment: roughly 20,000 tweets mentioning Goose Island, split into the weeks b
TeachingNewWhat Your Rival's Price Does to Your Sales — Cross-Price Elasticity
A D3M teaching case: estimating a cross-price elasticity matrix from 116 weeks of orange juice scanner data, and learning to tell a real competitive finding from a rounding error.
TeachingNewHow Many Questions Do You Need? — Factor Analysis and the Cost of a Shorter Survey
Bean & Basket wants to launch a Discovery Subscription — a rotating single-origin coffee delivered monthly, sold as a $45-a-year commitment. The marketing team has a theory about who will buy it: curious people. People who like trying th…