It is well known that certain anomalies–puzzles–have been observed in open macroeconomics. The presence of such puzzles makes explaining aspects of economic theory or empirical evidence an extremely difficult task for economists. One of them is the so-called Feldstein–Horioka (henceforth F–H) puzzle, introduced by Feldstein and Horioka in 1980. The authors empirically investigate the argument that, under perfect international capital mobility, domestic savings must flow to the most attractive projects around the globe and, as a result, they should not be correlated with domestic investment. To this end, they estimate the following cross-country equation