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  • Crude Measurements

Population Growth - Doubling Time

• This is $\frac{70}{\text{RNI}}$ will tell us the doubling time of our population. Where RNI is Rate of Natural Increase

• #tk can I find a closed form Exponential Distribution to model this?

• Speed of Population Change

  • Doubling population in less than 30 years is rapid growth
  • You need to look at resource availability.

• Problems with doubling time measure

  • Requires a constant rate of change throughout the periods.
  • Doesn't consider popl. migration.
  • Different economies might have the same doubling time.