Bears and Policy Although the discussion at a Kansas City Fed conference was framed as the shifting nexus in agriculture, it boiled down to how bearish should the ag finance community be on the outlook for agricultural prices. Billions of dollars have been invested by farmers and agribusiness in building the supply response capacity to the high crop prices of recent years and the dividends are now beginning to roll in. The University of Missouri's Pat Westhoff forewarned against understating the downside potential in price.  Purdue University's Mike Boehlje warned the audience of sub-$4/bushel corn and assured everyone that we are in a farm land bubble with simply a question of when it will burst. Texas A&M's Joe Outlaw lament...