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A Malthusian Model of Population Change

A Malthusian Model of Population Change . Thanks to Luis Locay for introducing me to this model many years ago. Malthus: A Formal Model. Ld=labor demand. Labor (Pop.). Ls=labor supply. Real Wage. CBR. CBR, CDR. NRI=0. CDR. Real Wage. w*. Effects of Charity A Malthusian Perspective.

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A Malthusian Model of Population Change

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  1. A Malthusian Model of Population Change Thanks to Luis Locay for introducing me to this model many years ago.

  2. Malthus: A Formal Model Ld=labor demand Labor (Pop.) Ls=labor supply Real Wage CBR CBR, CDR NRI=0 CDR Real Wage w*

  3. Effects of CharityA Malthusian Perspective Growth shifts Ls curve up thus reducing the effective wage. Labor (Pop.) Ls2 3 Ls The effective wage falls until CBR=CDR, leaving the level of living as was prior to charity. Ld Real Wage CBR CBR, CDR CBR>CDR => Growth 2 Worker receives w*-c from labor and c in charity. CDR Real Wage (w*-c) w* (w*+c) 1 4

  4. Malthus: The Plague Ld Labor (Pop.) Ls 2 Ls2 Real Wage CBR CBR, CDR 1 CDR2 CDR Real Wage w* w2*

  5. Technological Advances Ld Ld2 Labor (Pop.) 1 Ls2 4 Ls Real Wage CBR CBR, CDR 3 population grows NRI=0 CDR Real Wage w* w2 5: wage returns to w* 2

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