Which of the following may lead to a shift in the demand curve?(Select all possible correct responses)

An increase in income

A decrease in income

An increase in the costs of producing the good

An increase in the price of the good

An increase in the price of a substitute good

An improvement in productivity

An increase in advertising for the product

An increase in the price of a complementary good

An increase in supply of the good

A decrease in the number of buyers