Fertility and Wars: the case of world war I in France Report as inadecuate




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Abstract

During World War I 1914{1918 the birth rates of countries such as France, Germany, the U.K., Belgium and Italy fell by almost 50%. In France, where the population was 40 millions in 1914, the decit of births is estimated at 1.4 million over 4 years while military losses are estimated at 1.4 million too. Thus, the fertility decline doubled the demographic impact of the war. Why did fertility decline so much? The conventional wisdom is that fertility fell below its optimal level because of the absence of men gone to war. I challenge this view using the case of France. I construct a model of fertility choice where a household in its childbearing years during the war faces three shocks: i an increased probability that its wife remains alone after the war; ii a partially-compensated loss of its husband-s income; and iii a decline in labor productivity followed by faster growth. I calibrate the model-s parameters to the time series of fertility before the war and use military casualties and income data to calibrate the shocks representing the war. The model reproduces well the eect of the war, over-predicting the fertility decline by 2% even though it does not feature any physical separations of couples. It over-predicts the increase in fertility after the war by 24%, and generates a temporary increase in the age at birth as observed in the French data.



Item Type: MPRA Paper -

Original Title: Fertility and Wars: the case of world war I in France-

Language: English-

Keywords: Fertility ; war ; growth ; uncertainty-

Subjects: J - Labor and Demographic Economics > J1 - Demographic EconomicsE - Macroeconomics and Monetary Economics > E1 - General Aggregative ModelsN - Economic History > N4 - Government, War, Law, International Relations, and Regulation-





Author: Vandenbroucke, Guillaume

Source: https://mpra.ub.uni-muenchen.de/43535/







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