A decrease in minimum wages will produce Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a shift up of the WS equation and an increase in the natural unemployment rate b a shift down of the WS equation and a decrease in the natural unemployment rate c a shift up of the PS equation and a decrease in the natural unemployment rate d a shift down of the PS equation and an increase in the natural unemployment rate e none of the above