2. If labor s marginal product is less than its average product, 3. If labor s marginal product equals its average product, = 0 and the average product will reach its minimum value at that point, as this is the first-order condition for a minimum.arginal Product and Average Product. Consider a firm producing output with just two inputs, labor (L) and capital (K). The firm s total product (TP, or  Q  for quantity produced) is a function of its two inputs: TP = Q = f (L, K).
The average, or mean, wages for marine engineers and naval architects were $38.10 per hour or $79,240 per year in May 2009, according to the Bureau of Labor Statistics (BLS).alaries ranged from $41,070 and less for the worst-paid 10 percent of marine engineers to $121,900 and up for the occupation's top 10 percent of wage earners.
As of 2009, a ship engineer's average hourly wage was $33.38, and his average annual salary was $69,420, according to the BLS. Ship engineers on the lower end of the salary scale earned $35,030 per year, and those on the higher end of the salary scale earned $109,310 per year.hey also stand watch and steer the ship and have other duties. Marine oilers assist engineers and perform duties such as lubricating gears and reading temperature and pressure gauges. As of 2009, these merchant mariners averaged $17.94 per hour, and their average annual salary was $37,310, according to the BLS.