I just did a little research on the inequality theme George and I went over a few pages ago. To see how well different economies work for the less fortunate, I went to
the 2003 CIA World factbook and compared the incomes and income distributions of the G8 countries. Here's the result.
(Technical note: "$ at PPP" means "Dollars at purchasing power parity". Purchasing power varies across space just as it varies across time. To compare incomes across countries, you have to adjust for that, just as you have to adjust for inflation when comparing incomes across time.)
Code:
per captia GDP share of lowest lowest decile income
($ at PPP) decile ($ at PPP)
Canada 29,300 2,8 % 8,204
France 26,000 2,8 % 7,280
Germany 26,200 3.6 % 9,432
Italy 25,100 2.1 % 5.271
Japan 28,700 4.8 % 13,776
Russia 9,700 5.9 % 4,656
UK 25,500 2.3 % 5,865
USA 36,300 1.8 % 6,534
My interpretation:
1) In terms of average income, the USA win hands down. The conservatives and libertarians are right in pointing that out.
2) Inequality in Canada is about what you would expect from a European country with the same welfare system, and lower than you would expect based on George's regional differences hypothesis. (Regions in Canada are about as far apart from each other as regions in the US.) This suggests that inequality figures fairly reflect the differences in the social fabric of countries.
3) Liberals are right to point out that the welfare state can improve the life of the poor without compromising productivity too much. This is true as long as they don't go all the way to communism, as Russia's example demonstrates. But in the real world, I don't know of any liberal who wants to go that far. This extreme kind only exists in RNC pamphlets.
4) So which economic system is better? It's not a slam dunk either way, and it ultimately depends on what your values are. You can believe, as liberals do and Catholic social teaching does, that extra money buys a lot more happiness for the poor than it does for the rich. If you do, it follows that the American economy should become more like Canada's, Europe's, and (surprisingly) Japan's. (But not like Russia's.) If you believe that the income distribution isn't worth worrying about, you will be most interested in productivity and favor the US model.
Repeat: It's not a slam dunk either way.
(PS: Sorry about all these corrections. After CI's response, I discovered about 6 embarrassing typos I had to correct -- two at a time

)