When a production function is graphed with Real GDP on the vertical axis and labor on the horizontal axis, a rise in labor which shifts the LRAS curve resulting in . a. shifts the production function up; rightward; economic growth b. shifts the production function down; leftward; a shrinking economy c. moves us up along a given production function; rightward; economic growth d. moves us down along a given production function; leftward; a shrinking economy

White truffles are a very prized and rare edible fungus that grow naturally in the countryside near alba, italy. suppose that it costs $200 per day to search for white truffles. on an average day, the total number of white truffles (t) found in alba is t = 20x − x 2 , where x is the number of people searching for white truffles on that day. white truffles can be sold for $100 each. if there is no regulation, how many more people will be searching for white truffles than the socially optimal number?