A COMPARATIVE STUDY OF ALTERNATIVE ECONOMETRIC PACKAGES: AN APPLICATION TO ITALIAN DEPOSIT INTEREST RATES

3500

3000 -

. 2500 -

φ 2000 -

E

О)

C

1 1500 -
Ω.

1000 -

500 -

0 4-
0

100      200     300     400     500     600     700     800     900

Number of replications

In order to have comparable results, the programs for the Monte Carlo experiments have been
written using the looping features made available by each package.

5.2 Bias and Monte Carlo Variability

The second and more important insight gained from the application of MCA1 is the evaluation of a
bias and a standard deviation for the Monte Carlo replications for each of the packages examined.

The following graphs show the behavior of the bias and the standard deviation around the Monte
Carlo mean computed for the coefficients of the Herfindahl concentration index and the normalized cost of
personnel:

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