What happens if the marginal benefit is greater than the marginal cost?

If the marginal benefit is greater than the marginal cost, it indicates that the additional benefit gained from an action outweighs the additional cost incurred. This scenario suggests that the action is economically favorable and should be pursued, as it leads to an overall increase in welfare or profit. Consequently, decision-makers are likely to continue with the action until the marginal benefits and marginal costs become equal.