The Tamari attractor (from the economist Ben Tamari) is a three-dimensional attractor that models the economic situation of a country.
The Tamari equations are
where denotes the country's output, is the money axis, is the pricing axis, is inertia, is productivity, is printing, is adaptation, is the exchange rate, is indexation (linking), is expectations, is unemployment, and is interest.
 B. Tamari. "Chaos and Economics." (Jul 22, 2013) www.bentamari.com.