According to Walmart's code of ethics, Edward, an employee in the sales department, cannot accept gifts from suppliers because such actions would be a ________

Companies can develop ________, which serves as a guide to the future. It shows how the company's products and services, processes, and policies must evolve and what new technologies must be developed to get there.

A) new clean technology B) a cradle-to-cradle practice C) pollution prevention D) product stewardship E) a sustainability vision

Let: rj = regular production quantity for period j, oj =overtime production quantity in period j, ij = inventory quantity in period j, and dj = demand quantity in period j. Correct formulation of the demand constraint for a multiperiod scheduling problem

A) rj + oj + i2 - i1 ? dj. B) rj + oj + i1 - i2 ? dj. C) rj + oj + i1 - i2 ? dj. D) rj - oj - i1 + i2 ? dj.