This paper analizes with cross-sectional data if the Golden Rule condition satisfies: where the saving index is equal to capital (beta) or to the real interest rate, equal to the gross output growth of households.
Elías, V. (2016). The empirical foundation of the golden rule. Estudios De Economía, 28(1), pp. 79–88. Retrieved from https://estudiosdeeconomia.uchile.cl/index.php/EDE/article/view/40791