README.md

metadata

title: Basic Econ Demo
emoji: 💹
colorFrom: blue
colorTo: green
sdk: streamlit
sdk_version: 1.33.0
app_file: app.py
pinned: false
license: mit

Basic Econ Demo (Supply & Demand Playground)

An interactive Streamlit app to explore microeconomics fundamentals:

• Adjustable linear or power-form supply and demand curves
• Policies: per-unit tax, price ceiling, price floor, and quota (quantity cap)
• Automatic calculation of equilibrium, consumer surplus, producer surplus, tax revenue / quota rent, total surplus, and deadweight loss
• Interactive Plotly visualization with shaded areas (CS, PS, TR/QR, DWL)
• Download buttons for metrics and curve data as CSV

How to run locally

pip install -r requirements.txt
streamlit run app.py

Notes

• Curves use: Demand P = α_d − β_d Q^γ_d, Supply P = α_s + β_s Q^γ_s
• Power form exponents γ ∈ [0.5, 2]
• For price controls, assumes efficient rationing
• Quota rent computed as (Pc − Pp) × Q when binding