Want an efficient portfolio? Try this model

Researchers have devised a method that could help some traders, including those managing large portfolios or those working in statistical arbitrage groups who are seeking to capitalize on pricing inefficiencies between securities. 

When house prices rise, so do retail prices

Higher home prices lead to higher household spending, according to recent academic research. But New York University's Johannes Stroebel and Chicago Booth's Joseph S. Vavra argue that rising prices also lead to retail price inflation.