Supply curve to the left, to the right, or not at all
Indicate whether each of the following situations would shift the supply curve to the left, to the right, or not at all.
a. An increase in price of inputs
b. An increase in the number of firms in the market
c. An increase in the price of substitutes in production
d. A decrease in the current price of the product
e. A decrease in productivity
f. A decrease in the expected future price of the product