11.2 Classical Economic Growth Theory ⊙ Presumption1 The number of the labour is increased in exponential form * Lt: labour is the function of the time Lo labour radices i *e: natural logarithm *gL: labour growth rate L=l L 0 复表经济学院11.2 Classical Economic Growth Theory  Presumption 1 ❖ The number of the labour is increased in exponential form；  Lt：labour is the function of the time；  L0 ：labour radices；  e ：natural logarithm；  gL ：labour growth rate g t t L L L e . = 0