संतुलन कीमत से नीचे लगाई गई एक प्रभावी मूल्य सीमा (Price Ceiling) आम तौर पर निम्नलिखित में से किस स्थिति को जन्म देती है? A. कालाबाजारी B. वस्तु की कमी (Shortage) C. वस्तु का अधिशेष (Surplus) D. वस्तु की जमाखोरी E. कानूनी रूप से आपूर्ति की जाने वाली मात्रा में वृद्धि नीचे दिए गए विकल्पों में से सबसे उपयुक्त उत्तर का चयन कीजिए:

Which of the following is NOT valid for the ordinal school of consumer preferences?

Identify the correct equation representing the Cobb-Douglas production function:

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The skimming price policy is adopted where close substitutes of a new product are not available. Reason (R): This policy requires fixing a lower initial price designed to penetrate the market as quickly as possible and is intended to maximize the profit in the long run. In the light of the above statements, choose the most appropriate answer from the options given below: