International economics
Big Mac Index Explorer
Explore currency valuation, purchasing-power parity, and over- or undervaluation using The Economist's Big Mac Index.
Open explorerSt. Bonaventure University
SBU Econ
Course companions and interactive economics tools built for class, practice, and review.
Course companion
Principles of Microeconomics
Read the developing textbook and practice the central models of the course with focused applets arranged in chapter order.
Explore Microeconomics- 02 Comparative advantageOpportunity cost and gains from trade
- 03 Supply and demand shiftsShifters and equilibrium direction
- 05 ElasticityResponsiveness, classification, and revenue
Course companion
Law and Economics
Read the complete undergraduate textbook, download AI-friendly chapters and lecture slides, and follow legal rules from property and bargaining through platforms, code, and AI.
Explore Law and Economics- 04 Transaction Costs and the Coase TheoremBargaining, cooperative surplus, and institutional choice
- 07 Torts, Accidents, and IncentivesPrecaution, liability, and activity levels
- 15 Platforms, Code, and AIAuthority, agency, and responsibility
Course companion
Sports Economics
Read the developing second-edition textbook, download AI-friendly chapters and lecture slides, and practice the core market models used throughout the course.
Explore Sports Economics- 01 Introduction to Sports EconomicsQuestions, evidence, and economic reasoning
- 02 The Supply and Demand PlaybookMarkets, equilibrium, and elasticity
- 04 Ticket Pricing and AttendanceCapacity, pricing, resale, and demand
Beyond the course textbooks
Other interactive tools
Explorers and classroom applications from across economics.
Sports economics
Fourth-Down Simulator
Compare go-for-it, punt, and field-goal decisions using a classroom-facing win-probability model.
Open simulatorInformation and markets
Polymarket Intelligence
Explore political betting-market probabilities and how prices aggregate participants' beliefs.
Open explorer