किसी उत्पादन फलन की आर्थिक 'रिज लाइन्स' (Ridge Lines) पर इनपुट (श्रम और पूंजी) की सीमांत उत्पादकता किसके बराबर होती है?

In the theory of production, a rational producer operates in Stage II where:

Perfect substitutability between factors of production is assumed by which type of isoquant?

Arrange the following sequential stages of the Law of Returns to Scale in the correct order as a business progressively expands the scale of all its production inputs in the long run: A. Constant Returns to Scale B. Diminishing Returns to Scale C. Increasing Returns to Scale Select the correct answer from the options given below: