The study analyzes in Spain the relationship between fecundity and marriage. In order to analyze how marriage and fertility are interrelated variables over time empirically evaluated a model that attempts to capture the non-causal temporal relationships between both phenomena in Spain. The analysisis approached by a VAR model and impulse response functions. The data used comes from the National Statistics Institute (INE). It has proven a fluctuating relationship between the two processes and weakly procyclical. The performances on <span name="style_italic">births</span> generate effects on both series showing influence-leadership. generate effects on both series showing influence-leadership.

Alcoholism; religion; youth; Spain