How much physical output a worker producers in an hour’s work depends on

How much physical output a worker producers in an hour’s work depends on: The worker’s motivation and skill The technology, plant, and equipment in use How easy the product is to manufacture All of the above 8 International trade tends to cause welfare losses to at least some groups in a country: The less mobile the country’s resources The more mobile the country’s resources The lower the country’s initial living standard The higher the country’s initial living standard