gdp

Visualization in regression analysis

February 23, 2012 | 0 Comments

Visualization is a key to success in regression analysis. This is one of the (many) reasons I am also suspicious when I read an article with a quantitative (econometric) analysis without any graph. Consider for instance the following dataset, obtai... [Read more...]

You’ve got the whole world in your portfolio

December 29, 2011 | 0 Comments

A famous finance professor once told us that good diversification meant holding everything in the world. Fine, but in what proportion? Suppose you could invest in every country in the world. How much would you invest in each? In a market-capitalization weighted index, you'd invest in each country in proportion ... [Read more...]

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