If the slope of PPC remains constant with an increase in the production of Good-X(on horizontal axis)at the cost of Good-Y(on vertical axis),what is the slope of PPC?Draw the PPC.

If the slope of PPC remains constant, then it implies that the marginal rate of transformation or marginal opportunity cost of the production of two goods in the economy is constant. In such a case, the quantity of good 1 sacrificed or forgone is equal to the quantity of good 2 gained in production. The slope of PPC in such a case would be equal to 1. The shape of PPC in such a situation is a 'straight line' as MRTS is constant. It is depicted in the following diagram.



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