Table 5.

The impact of flexitime on synchronous working time, couples with dependent children (endogenous flexitime)

	Youngest child under 5 years		Youngest child over 5 years
	OLS	IV	OLS	IV
	(1)	(2)	(3)	(4)
Has flexitime (m or f)	0.774*	1.866*	0.752**	–1.648
	(0.448)	(1.085)	(0.357)	(1.373)
F-test of excluded instrument		28.9		26.0
Hausman test of equal flexitime coefficients χ2 (1)		0.02		1.64
N (couples)	256	256	495	495

OLS estimates at couple level, weighted for survey design and non-response. Standard errors in parentheses. Models include (for each spouse) daily work duration, age and age squared, highest educational qualification, log hourly wage, and region. Instrument is proportion of flexitime in local authority district. Hausman test carried out on unweighted estimates. Standard errors in parentheses

* Significant at 10% level

** Significant at 5% level