Originally Posted by HowlerKarma
Are higher IQ's correlated with better financial management of the income that the family unit does have?

The working paper

http://mason.gmu.edu/~gjonesb/IITE.pdf
"Will the intelligent inherit the earth?: IQ and time preference in the global economy"
by Garett Jones states that

'Psychologists have known for decades that higher IQ is associated with greater patience, which they often refer to as
lower “delay discounting.”'

and provides references for this assertion.

A paper

http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1441512
IQ and Stock Market Participation
Mark Grinblatt
University of California, Los Angeles (UCLA) - Finance Area; Yale University - International Center for Finance; National Bureau of Economic Research (NBER)
Matti Keloharju
Aalto University
Juhani T. Linnainmaa
University of Chicago - Booth School of Business
October 9, 2010
Abstract:
Stock market participation is monotonically related to IQ, controlling for wealth, income, age, and other demographic and occupational information. The high correlation between IQ, measured early in adult life, and participation, exists even among the affluent. Supplemental data from siblings, studied with an instrumental variables approach and regressions that control for family effects, demonstrate that IQ’s influence on participation extends to females and does not arise from omitted familial and non-familial variables. High-IQ investors are more likely to hold mutual funds and larger numbers of stocks, experience lower risk, and earn higher Sharpe ratios. We discuss implications for policy and finance research

suggests that IQ is positively correlated with the ability to invest well.

In general, IQ is positively correlated with good outcomes. Anecdotes and speculation about the tails should not obscure this pattern.