The link between wealth and happiness is less strong than commonly assumed, but research suggests clever spending may yield impo(...)

Pause for thought: multiple signals indicate that the US stock market faces years of sub-par returns. Photograph: Andrew Burton/Getty Images

Bulls are not convinced by indicators showing that the US market is severely overvalued

Bears v bulls: as US markets hit new highs, bearish observers warn that a crash may be imminent but only some bearish arguments have merit. Photograph: Krisztian Bocsi/Bloomberg

There are always reasons to be cautious, but most warnings are easily debunked

Bears v bulls: as US markets hit new highs, bearish observers warn that a crash may be imminent but only some bearish arguments have merit. Photograph: Krisztian Bocsi/Bloomberg

There are always reasons to be cautious, but most warnings are easily debunked

Analysts are more excited by Apple Pay

Conflict in Ukraine: the country’s annual GDP is equal to about two days of US GDP resulting in little effect on the global market. Photograph: Reuters/Gleb Garanich

Geopolitical crises have little effect on markets partly because they are anticipated and priced in

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