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Research by Leeds鈥� Associate Professor of Finance Nathalie Moyen and colleagues from Emory University and McGill University sheds new light on an important theory of investment known as Tobin鈥檚 q.

The q theory predicts that corporations should grow their capital investments in lockstep with their market valuations. The theory was developed by economist James Tobin, who won the Nobel prize in baby直播apps in 1981 for this insight.

Although the theory became significantly used in finance, baby直播apps and other related fields over the past decades, empirical researchers had a hard time finding much support for the theory in data鈥攗ntil now.

Enter Moyen鈥檚 team; their research demonstrates that Tobin鈥檚 q theory is now an empirical success. This can be clearly seen in Figure 1 of their paper, published in the Journal of Financial Economics in August 2019. The time series for investments and valuations are much more correlated than they used to be.

Moyen and her colleagues found that Tobin鈥檚 q is best applied to new economy firms with 鈥渉igh volatilities in equity valuations, high levels of R&D investment, and low levels of tangibility.鈥� Their research points to several implications that are important for predicting corporate investment behavior. One in particular, is the notion that Tobin鈥檚 q is much better suited for measuring corporate investment opportunities than previously thought.

As this research gains well-deserved momentum in the finance world, at last Tobin鈥檚 theory is getting the empirical validation it has long deserved.