Mathematical models (2) Modelos matemáticos (2) Modélisation (2) Modèles mathématiques (2) modélisation (2) Economic policy (1) Economic conditions (1) Government policy (1) Assaying (1) Nineteen nineties (1) Carbon taxes (1) Worms (1) Value-added tax (1) State, The (1) Public investments (1) Production (Economic theory) (1) Physicians (General practice) (1) Petroleum (1) Macroeconomics (1) Investment of public funds (1) Impact (1) Equilibrium (1) Economics (1) Cognition (1) Art (1) Research (1) Prices (1) Analysis (1) Versions (1) Inspiration (1)