Expert Answer
a) Labor Productivity
Labor Productivity is generally defined in terms of amount of goods and services produced by one hour of labor
Labor Productivity = Units produced / Labor hours = 1000 / 400 = 2.5 units/hr
b) Multifactor Productivity
Multifactor Productivity is defined as the ratio of output goods and/or services produced to all the costs involved
Multifactor Productivity = Output / (Raw material + Labor + Electricity + Capital)
Here, Raw material costs = 20000 * 1 = 20000
Labor costs = 12.5 * 400 = 5000
Energy costs = 5000
Capital costs = 10000
Multifactor Productivity = 1000 units / (20000 + 5000 + 5000 + 10000) = 1000 / 40000 = 0.025 units/$
c) Change in Multifactor Productivity %
If energy costs is reduced by 50%, the new energy cost will become 2500.
So, Multifactor Productivity = 1000 units / (20000 + 5000 + 2500 + 9000) = 1000 / 36500 = 0.0274 units/$
Change in Multifactor Productivity % = (0.0274 – 0.025)/ 0.025 * 100 = 9.6%