maritime-choke 0.1.0

Interactive model of macroeconomic risk from maritime-chokepoint trade disruptions

maritime-choke

An interactive model of the macroeconomic risk from maritime-chokepoint trade disruptions. Close any set of the world's 12 major shipping chokepoints, pick a (τ, ρ, δ) calibration, solve a short-run production-network model forward, and explore where the value-added loss falls — on an interactive world heat map, by country, and by sector — all in a local browser GUI.

Based on Macroeconomic Risks from Maritime Trade Disruptions (Vemmarath & Veetil). Source & data: https://bitbucket.org/VipinVeetil/chokepoints

Install

pip install maritime-choke

Get the data (one-time)

The solver needs a model cache (~180 MB) that isn't shipped in the wheel:

maritime-choke fetch-data          # downloads and installs it

(You can also point at a local copy: maritime-choke fetch-data --from-local /path/to/model_cache_2019.)

Run

maritime-choke run                 # opens the GUI at http://127.0.0.1:5057

Pick chokepoints, set the calibration, hit Run scenario. Results are written to a per-user folder (see maritime-choke where) and shown in the page: world value-added loss, a relatable "scale of the loss" comparison, the world heat map (recolour by any of 50 sectors), and per-country / per-sector drill-downs.

Commands

command	what it does
maritime-choke run	launch the GUI (--port, --no-browser)
maritime-choke fetch-data	download/install the model cache (--url, --from-local, --force)
maritime-choke pack-data <dir>	pack a local cache into a .tar.xz for hosting
maritime-choke where	show data / cache / run-output locations
maritime-choke build-data	how to rebuild the cache from GTAP + OECD ICIO

Data locations can be overridden with MARITIME_CHOKE_DATA (cache root) and MARITIME_CHOKE_RUNS (run outputs). The download URL can be set with MARITIME_CHOKE_DATA_URL.

Data & licensing

The model cache is derived from OECD ICIO (freely downloadable) and the licensed GTAP 10 data base. The raw GTAP data is not redistributed; if you need to rebuild the cache from scratch you must supply your own GTAP licence — see maritime-choke build-data. The shipped map/comparison assets are built from public Natural Earth and World Bank data.

License

MIT (code). Underlying GTAP and OECD ICIO data are governed by their own terms.