Table 1

Descriptive Statistics (Percentage except where noted)

	All Contract Types		Permanent Contracts		Fixed-Term Contracts
	Mothers	Childless	Mothers	Childless	Mothers	Childless
Mean log of yearly earnings (cents of €)	13.97 (0.55)	13.91^† (0.60)	14.07 (0.46)	14.02^† (0.52)	13.77 (0.66)	13.79^† (0.68)
Mean usual weekly hours	35.08 (9.07)	35.14^† (9.37)	36.43 (7.56)	36.69^† (7.75)	32.20 (11.11)	33.26^† (10.73)
Age 35 to 39 years old	32.67	35.22^†	35.70	38.20^†	26.23	31.58^†
Age 40 to 45 years old	9.67	13.81^†	11.31	15.26^†	6.18	12.05^†
Cohabiting	83.74	70.44^†	83.78	69.17^†	83.64	72.00^†
Children younger than three years	24.29	0.00^†	25.62	0.00^†	21.47	0.00^†
Children three years old	6.90	0.00^†	7.33	0.00^†	6.00	0.00^†
Children 4–6 years old	14.97	0.00^†	16.50	0.00^†	11.74	0.00^†
Children older than six years	13.72	0.00^†	16.38	0.00^†	8.07	0.00^†
High-school dropout	40.03	42.58^†	39.13	41.47^†	41.93	43.93^†
High-school graduate	49.97	46.35^†	52.27	47.85^†	45.09	44.53
College graduate or above	10.00	11.07^†	8.60	10.68^†	12.98	11.55^†
Working part-time	26.85	24.82^†	21.58	18.33^†	38.06	32.72^†
Mean years of experience	8.42 (5.66)	5.94^† (5.07)	10.25 (5.39)	8.18^† (5.19)	4.54 (4.00)	3.21^† (3.27)
Years of experience in FT jobs	6.44 (6.28)	4.63^† (5.31)	8.34 (6.39)	6.90^† (5.77)	2.41 (3.55)	1.88^† (2.87)
Years of experience in PT jobs	1.98 (4.18)	1.30^† (3.00)	1.91 (4.41)	1.28^† (3.27)	2.13 (3.62)	1.33^† (2.64)
Mean years of tenure	6.14 (5.51)	4.12^† (4.66)	7.94 (5.50)	6.15^† (5.09)	2.33 (3.00)	1.64^† (2.32)
Public servant	5.17	4.32^†	5.61	4.55^†	4.24	4.04
Mean firm size (number of workers)	521.74 (2180.86)	394.08^† (1694.29)	598.94 (2454.30)	442.36^† (1995.76)	357.53 (1421.67)	335.29 (1228.68)
White collar	13.11	12.98^†	12.72	12.80	13.95	13.21^†
Months of inactivity	11.48 (17.72)	15.47^† (19.61)	6.98 (12.85)	9.99^† (15.44)	21.05 (22.27)	22.15^† (21.94)
Times changed employer	0.57 (1.20)	0.71^† (1.33)	0.45 (1.05)	0.60^† (1.19)	0.85 (1.45)	0.86 (1.48)
Returns to same employer after inactivity	19.02 (1.37)	17.93^† (0.70)	0.35 (0.47)	0.17^† (0.38)	0.14 (0.35)	0.17^† (0.38)
Number of woman-year observations	21,470	61,933	14,604	34,008	6,866	27,925

Notes: Observation by women-year, individual retrospective information from the CSWH-2006. The numbers in parenthesis are standard deviations. All hourly wages are deflated by the gross domestic product (GDP) deflator (base year = 2006). Mothers include mothers to be. Childless are those who will never have a child.
↵† childless mean significantly different from mothers’ mean at the 90 percent confidence level.