I think they travel, save, and purchase assets abroad.
I don't have the per capita 'net worth' numbers for the US yet, but so far it appears the Japanese have the lead in this measure.
Per Capita Networth
Britain 126k USD equiv (at 11/13/03 exchange rate)
Aussie 67k (at ~ .53 USD/AUD)
Canada 82k (at ~ .68 USD/CDN)
Japan 223k (at ~ 105 JPY/USD)
There may be statistical interpretation errors on my part; wealth per capita may be measured differently by various govt agencies; wealth changes with exchange rate fluctuations in non obvious ways; wealth changes with technological advances (ie Oil is now considerably more valuable today than in 1904).
UK (2001 Blue Book table 10.2 )
4,511 billion pounds
--------- -> 75,183 pounds per cap
.06 billion pop
Japan (2000)http://www.stat.go.jp/english/data/nenkan/zuhyou/b0411a00.xls
2,973,710 billion yen
---------
105 Yen / dollar -> $223,000
----------------------
.127 billion pop
Canada - (2003Q1 Net worth per capita)
120,900 * .68 CDN
--------- ---> $82,212
USD
Australia - (2001 Net worth per capita)
$127,330 * .53 AUS (appx exchange rate 01)
--------- ---> $67,485
USD
