"Sucky" relative to whatever it is the woman (who divorces him) wants.
> Winning a lottery makes you much wealthier relative to other people, it puts you in maybe 10-20% richest people of your country. You can't fit everyone in those 20%.
The average lottery winnings this paper is looking at is equal to ~$140,000 USD. According to wikipedia, Credit Suisse says the median net worth of individuals in Sweden is $95k USD. And the paper says the wealth effect on Swedish males is greatest among unmarried men with low incomes.
This is a one-off gain. It is not the continuous gain of a high-paying job. So this lottery win can provide immediate stability and opportunity, but it cannot, in itself, provide longevity of income gains.
You are making the claim that gains relative to population are most important. While I can see this as being important in supply-limited countries, I am not sure that Sweden is such a country.
> Country is miserably poor compared to Sweden and they still reproduce like they win lotteries all the time.
Which is why you control for experimental factors. If you want to see what factors boost marriage rates, marriage stability, and reproduction in Uzbekistan, you want to study Uzbekistan. This study was about Sweden.