The difference between the producer’s price and the consumer’s price is known as: ((MCAER 2014))

✅Explanation: Marginal product (MP) is the additional output produced by one more unit of input. When MP is zero, it means that adding one more unit of input does not increase total product (TP). This indicates that TP is at its maximum point.

🔑Key Points:
-The term "total product" (TP) describes the complete production of a business or industry over a specific time period. The average output of a factor of production per unit is referred to as average product (AP) (typically labor). Marginal Product (MP) is the increase in Total Product (TP) brought about by using one more unit of a manufacturing factor (typically labor). 
-A production function can be used to depict the connection between TP, AP, and MP. In general, TP will rise, but at a slower rate, as more units of a factor of production are added. AP will initially rise before falling, reaching its peak before falling. MP will first rise before falling to zero. The point of decreasing returns is defined as the moment at which MP equals 0.
Hence, When TP is maximum MP is zero.