<p>Let’s revisit the idea introduced by the book Farewell to Arms (non-fiction, f.y.i., for those in various threads who think I’ve been introducing fictional works to convey various points). </p>
<p>Say we have a village of four people, and their occupations are (in descending order of income): investment banker, merchant, factory worker, farmer. Let’s say you need all four of those occupations to have a successful village, and only one position for those four occupations are open. Again let’s say fathers can reproduce asexually, like my previous post. And let’s say the IB’er, merchant, fact. worker, and farmer have IQs of 140, 125, 110, and 95, respectively. </p>
<p>So in our village, we have:
IB’er: 140 IQ
Merchant: 125 IQ
Factory worker: 110 IQ
Farmer: 95 IQ </p>
<p>They all try and have kids; the investment banker has 3 surviving children, the merchant has 2 surviving children, the factory worker 2, and the farmer 1. </p>
<p>We’ve established that IQ is hereditary, so the childrens’ IQs will be similar to their fathers’. I’ll even be conservative with the next generation’s IQs (I low-balled the average of the IB’er and merchants’ kids, and high-balled the other two). No one subsidizes anyone’s living, so the higher income professions have superior reproductive potential. So in the next generation, we have: </p>
<p>IB’er: 140 (IB’er’s kid)
Merchant: 135 (IB)
Factory Worker: 130 (IB)
Farmer: 120 (Merchant)
Unemployed: 115 (Fact. Worker)
Unemployed: 110 (Fact. Worker)
Unemployed: 100 (Farmer)</p>
<p>So now the village is overall, more productive in this generation, with more intelligent people manning their four professions, all because the richer bred quicker. </p>
<p>The four current professionals could choose to subsidize the unemployed, but what if they do? It’ll just increase the subsequent generations’ need to subsidize. If this village subsidizes and increase the reproductive potential of their poor, standard of living will never increase–the Malthusian trap will never be broken; population growths will negate any advances in overall productivity, because the average villager productivity never rises. </p>
<p>My example was overly simplified to illustrate this phenomenon, but this is what happened in England prior to the industrial revolution–worker productivity increases that exceeded the effect of population growth, as a result of the rich drastically outbreeding the poor.</p>