Which of the following are non-price determinants of supply? 1. new producers entering the market 2. government taxes and subsidies 3. effect of mass media advertising 4. cost of the product or services 5. future expectation of prices

Your answer will be 3). effect of mass media advertising. This is more of a demand, not really a supply.

1. New farmers entering the market.  

More manufacturers delivering a product or assistance will indicate a larger accumulation of that produce or service.

2. Government taxes and subsidies.

High taxes on a commodity may dissuade suppliers, whereas administration grants will promote more of the goods to be furnished. 

4. Cost of the product or services.  

Huge input expenses to render the merchandise or assistance will lead to decrease supply, as advantage borders for yields are affected.

5. The future expectation of prices.   

This is complex to describe as "non-price determinant," but it's not a prevailing, original price.  It's the apprehension that costs and businesses will be determined at some future point.