A universal model for the Lorenz curve with novel applications for datasets containing zeros and/or exhibiting extreme inequality
洛伦兹曲线的通用模型：含零值与极端不平等数据的应用
Given that the existing parametric functional forms for the Lorenz curve do not fit all possible size distributions, a universal parametric functional form is introduced. By using the empirical data from different scientific disciplines and also the hypothetical data, this study shows that, the proposed model fits not only the data whose actual Lorenz plots have a typical convex segment but also the data whose actual Lorenz plots have both horizontal and convex segments…