Question

Is there any impact if laws of return on production cost ?
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Answer 1

The law of diminishing returns states that in all productive processes, adding more of one factor of production, while holding all others constant ("ceteris paribus"), will at some point yield lower per-unit returns . ... The law of diminishing returns implies that marginal cost will rise as output increases

Answer 2

Reproduction cost is the cost to construct an exact duplicate of the subject structure at today's costs. Replacement cost is the cost to construct a structure with the same usefulness (utility) as a comparable structure using today's materials and standards.