A company has collected the data as shown in the table below for the factories it operates. The plants are of similar size and capacity. All data are in thousands of US$.

a- Calculate the labor, capital and multifactor (including, labor, capital and materials) productivity for each plant for all years.

b- Using the data in the table, plot plant As and Bs labor productivity on the same graph.

c- Using the data in the table, plot plant As and Bs capital productivity on the same graph.

d- Using the data in the table, plot plant As and Bs multifactor productivity on the same graph.

e- Evaluate each factorys performance overtime both independent of the other factory and relative to the other factory, what would you recommend?

	Plant A				Plant B
Year	Sales	Labor	Capital	Materials	Sales	Labor	Capital	Materials
2010	3480	178	870.5	1780	3510	180	878	2080
2011	3790	191	967	2030	3820	195	1023	2060
2012	4030	200.5	1050	2210	3960	200	1080	2105
2013	4060	199	1080	2180	4100	215	1117	2330
2014	4270	206	1160	2190	4290	217.5	1257	2430
2015	4580	218	1260	2410	4650	232.5	1200	2660
2016	4830	226	1360	2850	4750	240	1210	2440
2017	4890	225.5	1405	2750	4790	249.5	1290	2760
2018	5020	228	1470	2970	5040	252	1380	2920
2019	5050	226	1510	2990	5340	270	1450	3120
2020	5510	243	1680	3100	5630	290	1530	2960