Social sciences (4) Ciencias sociales (4) simulation (3) Trials (2) Sulfur (2) Profit (2) Production (Economic theory) (2) Metals (2) Human behavior (2) Gasoline (2) Force and energy (2) Energía (Física) (2) Azufre (2) Gasolina (2) Procesos (2) Producción (2) Beneficios (2) Conducta (2) Metales (2) production (2) Labor (1) Time (1) Temperature (1) Rate of return (1) Property (1) Petroleum (1) Nitrogen (1) Methodology (1) Matter (1) Industries (1)