Explanation:

If saving exceeds investment in an economy, it implies that there is an overall surplus of savings relative to investment spending. In the context of national income accounting, this situation is often referred to as a "leakage" from the income flow.

The national income, in such a scenario, may decrease or grow at a slower rate. This situation may contribute to economic challenges, as businesses may face reduced demand for goods and services, potentially leading to unemployment or lower economic growth.