Imagine a PPF for two goods: guns and butter. A natural disaster hits and reduces our ability to produce guns but not butter. What will be the effect? The opportunity cost of producing guns will decrease The opportunity cost of producing butter will decrease The opportunity cost of producing butter will increase There is not enough information to answer this question. Imagine a PPF for two goods: guns and butter. A technological advance increases our ability to produce guns but has no effect on our ability to produce butter. What will be the effect? The opportunity cost of producing guns will increase The opportunity cost of producing guns will decrease The opportunity cost of producing butter will decrease There is not enough information to answer this question.If input prices fall for some product, we should expect to see. Supply to Increase, causing the price to fall and the equilibrium quantity to rise Supply to Decrease, causing the price to rise and the equilibrium quantity to fall Demand to Increase, causing the price to rise and the equilibrium quantity to rise Demand to Decrease, causing the price to fall and the equilibrium quantity to fall If prices of a substitute good (in consumption) rise, we should expect to see.. Supply to Increase, causing the price to fall and the equilibrium quantity to rise Supply to Decrease, causing the price to rise and the equilibrium quantity to fall Demand to Increase, causing the price to rise and the equilibrium quantity to rise Demand to Decrease, causing the price to fall and the equilibrium quantity to fall