The relevant cause/effect relationship is identified when both time order and concurrent variation conditions are satisfied

James Franks lives in Miami. He buys local products from manufacturers in Miami and other parts of Florida and sells them abroad, mainly to Caribbean nations. Mr. Franks is a(n) ________

A) domestic-based export merchant B) domestic-based export agent C) cooperative agent D) export-management agent E) direct exporting agent

The production planner for Airbus showed his boss the latest product mix suggestion from their slick new linear programming model: 12.5 model 320s and 17.4 model 340s

The boss looked over his glasses at the production planner and reminded him that they had several half airplanes from last year's production rusting in the parking lot. No one, it seems, is interested in half of an airplane. The production planner whipped out his red pen and crossed out the .5 and .4, turning the new plan into 12 model 320s and 17 model 340s. This production plan is definitely feasible.