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.
The BLS lists marine mechanics under the job category of Motorboat Mechanics and Service Technicians. The average pay nationwide was $37,430 a year as of 2013. Because marine mechanics work mostly at docks and marinas, the largest number of jobs are in states located near large bodies of water.onnecticut was the state with the highest average yearly salary, at $47,060. New Jersey ranked second at $46,160. The biggest employers were boat dealers, which paid an average of $36,770 a year.