Multiple regimes and cross‐country growth behaviour
拒绝常用的线性跨国增长模型，提出多重机制模型，发现不同初始条件的国家遵循不同增长规律，且资本边际产出随经济发展水平变化，质疑收敛假说并指出索洛模型需引入生产函数差异理论。
Abstract This paper provides some new evidence on the behaviour of cross‐country growth rates. We reject the linear model commonly used to study cross‐country growth behaviour in favour of a multiple regime alternative in which different economies obey different linear models when grouped according to initial conditions. Further, the marginal product of capital is shown to vary with the level of economic development. These results are consistent with growth models which exhibit multiple steady states. Our results call into question inferences that have been made in favour of the convergence hypothesis and further suggest that the explanatory power of the Solow growth model may be enhanced with a theory of aggregate production function differences.