Consider the following four tasks (all of which require significant time and/or effort): (1) trekking through a forest carrying a trowel and 40 saplings, and every quarter of a mile kneeling to the ground, digging a hole, and planting a sapling; (2) using a pick axe to extract 100 pounds of ore from the ground; (3) a team of 200 shoveling snow from the 85,000 seats in a stadium before a January football game; and (4) advising a college senior in her senior thesis which, by protocol, requires weekly 90-minute meetings plus an additional 2 hours each week of reading and preparation. Describe in detail why an employer may or may not want to pay employees by the piece to accomplish these tasks? What are some conclusions for when paying by the piece is most useful?