Final answer:
The difference in nonmarket household production affects Zimbabwe's GDP positively, while leisure time affects Canada's GDP positively.
Step-by-step explanation:
The difference in nonmarket household production between Zimbabwe and Canada would affect the comparison of GDP between the two countries in the following way: Zimbabwe’s GDP would be higher if nonmarket production were counted. This is because nonmarket production, such as stay-at-home parenting, contributes significantly to Zimbabwe's GDP. On the other hand, Canada has a lower rate of nonmarket household production, so counting it would not have a significant impact on Canada's GDP.
If the amount of nonmarket production is the same in both countries, but Canadians have more leisure time than Zimbabweans, it would affect the GDP comparison in the following way: Canada’s GDP would be higher if leisure time were counted. Leisure time is not included in GDP calculations, so if it were included, it would increase Canada's GDP. Conversely, counting leisure time would not have a significant impact on Zimbabwe's GDP.