Which will cause a rightward shift of the aggregate supply curve

Large increases in wages generally lead to higher production costs for businesses, which can cause a leftward shift of the aggregate supply curve instead. As labor becomes more expensive, companies may reduce their output to maintain profit margins, thereby decreasing overall supply.

Stricter government regulations often impose additional compliance costs on businesses, which can hinder production efficiency and increase costs. This scenario typically results in a leftward shift of the aggregate supply curve, as firms may be forced to reduce output due to the higher costs associated with regulation.

While increased investment spending can enhance productivity and capacity in the long run, it does not cause an immediate rightward shift of the aggregate supply curve. The effects of investment take time to materialize, as they involve building infrastructure or expanding production capabilities, which are not instant changes in supply.