Ceteris Paribus Conditions for Supply:

· Prices of factors of production (inputs in the production process) – Example: Higher energy prices will shift the supply curve to the left.

· The number of firms (suppliers) – Example – If another firm or company starts to produce and sell tools, the supply curve of tools will shift to the right (supply will increase).

· Weather – Example: Good weather tends to create more crops.

· Prices of related outputs – Example: If the price of ice cream increases in the summer, I will shift my resources from the production of milk to ice cream.

· Expectations – Example: If I expect that the demand for widgets will increase in the future, I will open a widget stand to sell them.

· Subsidies – Example: A government subsidy will increase the supply of a good or service; for example, subsidies for low income housing.

· Taxes – Example: A tax increase will decrease the supply of a good or service.

· Technology – Example: An improvement in technology tends to increase efficiency and increase supply (shift the supply curve to right).

Note: This is not an exhaustive list, but the most common ceteris paribus conditions for supply found in typical economics textbooks.