Answer: D. All of the above
Explanation: The three options listed could explain why the productivity of labor increased with a reduction in the quantity of labor hired. The law of diminishing returns states that as more and more inputs of production are added, a time comes in when additional inputs causes no corresponding increase in productivity. At points like this a reduction in the input added would restore productivity.
Reducing the amount of labor obviously is a labour saving technical change. Changes in organizational innovation can also result in changes in productivity.
Shrink nations work force
<u>Answer</u> is D. remain at $30,000.
<u>Explanation:</u>
Rick's Internet Corporation balance in retained earnings = $30,000
Appropriated earning for future business expansion = $15,000
This appropriated earning set for future use will have no effect on the total retained earnings, because for appropriate retained earnings, the entry is to debit the retained earnings account.
Also, it would be board's decision if they want to use the money from the retained earnings or add more capital to it.