Explain: -The Surplus earned by a factor other than land in the short period is referred as quasi-rent.

Explanation:- If there is low marginal labour production, then after giving wages there will be profit from marginal labourer. Ultimately, demand of labour will increase and labour demand curve will shift towards right.

Explain: -IMF stands for international monetary fund. It publishes “World Economic outlook” every year, IMF is an organisation of 189 countries, working to faster global monetary co-orperation, secur. The International Monetary Fund (IMF) is an organization of 189 countries, working to foster global monetary cooperation, secure financial stability, facilitate international trade, promote high employment and sustainable economic growth, and reduce poverty around the world.