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Table 5

The effect of twinning as function of parity

SampleγbSENγcSEN
France, pre-1789 –0.03 0.03 65,722 0.05 0.04 24,609 
England, CAMPOP 0.06 0.04 76,239 0.03 0.04 76,239 
England, pre-1880 –0.09 0.05 55,590 -0.04 0.05 52,706 
Québec –0.01 0.10 324,202 -0.02 0.09 324,202 
SampleγbSENγcSEN
France, pre-1789 –0.03 0.03 65,722 0.05 0.04 24,609 
England, CAMPOP 0.06 0.04 76,239 0.03 0.04 76,239 
England, pre-1880 –0.09 0.05 55,590 -0.04 0.05 52,706 
Québec –0.01 0.10 324,202 -0.02 0.09 324,202 

Note: Parity coefficient is from OLS estimation of Eqs. (7) and (8).

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