Which of the following is called gossans first law / » Micro Economics 1 solved MCQs / By admin Question: Which of the following is called gossans first law A. law of substitution B. law of equi marginal utility C. law of diminishing marginal utility D. none of the above Answer» c. law of diminishing marginal utility Note: The above multiple-choice question is for all general and Competitive Exams in India.