Determine if the items represent an example of positive economics or normative economics.
a. the richest 1 % of americans should pay more taxes than the rest of the 99 %.
b. a decrease in the supply of coconut will increase the price of german chocolate cake, a good which requires coconut shavings as a key ingredient.
c. as minimum wage increases, the prices of all goods and services also tends to increase.
d. social welfare spending in sweden occupies too large a portion of the national budget.