| 1950 | 1988 | |||||
|
Class (Dfl 1000) |
Frequency (1000) |
Frequency density |
Class (Dfl 1000) |
Frequency (1000) |
Frequency density | |
| < 1 | 343 | 343 | < 2 | 334 | 167 | |
| 2 | 544 | 544 | 4 | 185 | 92 | |
| 3 | 909 | 909 | 6 | 192 | 96 | |
| 4 | 618 | 618 | 8 | 197 | 98 | |
| 5 | 261 | 261 | 10 | 193 | 96 | |
| 6 | 136 | 136 | 12 | 181 | 90 | |
| 7 | 79 | 79 | 14 | 163 | 82 | |
| 8 | 49 | 49 | 16 | 151 | 76 | |
| 9 | 33 | 33 | 18 | 138 | 69 | |
| 10 | 23 | 23 | 20 | 149 | 74 | |
| 15 | 53 | 11 | 22 | 173 | 86 | |
| 20 | 20 | 4 | 24 | 221 | 110 | |
| 50 | 23 | 1 | 26 | 267 | 134 | |
| 100 | 4 | 0 | 28 | 288 | 144 | |
| 100 | 1 | 0 | 30 | 294 | 147 | |
| 32 | 291 | 146 | ||||
| 34 | 302 | 151 | ||||
| 36 | 289 | 144 | ||||
| 38 | 237 | 118 | ||||
| 40 | 224 | 112 | ||||
| 45 | 384 | 77 | ||||
| 50 | 257 | 51 | ||||
| 60 | 257 | 26 | ||||
| 70 | 118 | 12 | ||||
| 80 | 65 | 6 | ||||
| 90 | 37 | 4 | ||||
| 100 | 22 | 2 | ||||
| 150 | 50 | 1 | ||||
| 200 | 10 | 0 | ||||
| 200 | 8 | 0 |
These data are not comparable, and some aspects are a bit less relevant for our objectives. Apart from the difference in independents, the 1950 distribution excludes females, and the 1988 distribution contains parttimers while the number of parttimers has strongly increased compared to 1950. In both cases it are incomes, and not just labour earnings. However, we can see how far we get.
Table 22 contains a summary review, with both the numbers of persons involved, the total and average income (in currency of the relevant year). It appears that by dropping the lowest 8 classes of the 1988 distribution we are better approximating the situation without the parttimers. This then is used for estimation of the lognormal productivity distributions that are used in the illustrations in the body of the text.
Table 22: Summary of the Dutch income distributions
for 1950 and 1988
| Number of persons (thousands) | Total income (Dfl million) | Average income (Dfl thousand) | |
| 1950 | 3096 | 10993 | 3.5 |
| 1988 with the first 8 classes excluded | 4081 | 154120 | 37.7 |
| 1988 | 5677 | 165460 | 29.1 |
Program used in the analysis on exposed and sheltered sectors
This program uses the Applied General Equilibrium routine of the Economics Pack (Colignatus (1999)), which routine is based on work of Asahi Noguchi and Silvio Levy, see the chapter in Varian (1993). It is nice to show how simple modeling actually can be made.
Needs[“Economics`Pack`”]
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Economics[“AGE`”]