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Table 4 Robustness checks (probability of conversion from fixed-term to permanent contract during each single period)

From: Getting stable: an evaluation of the incentives for permanent contracts in Italy

Control group: Men ≥ 30 (1) (2) (3) (4) (5)
Treatment group: all eligible Main results over 2012 with covariates Falsification over 2011 with covariates Main results over 2012 with age [26,34] Falsification over 2011 with age [26,34] Main results on closed sample (only fixed-term contracts active in period I)
Dependent variable: dummy for conversion
Eligible −0.0017** −0.0008 −0.0004 −0.0023 −0.0021***
  (0.0008) (0.0008) (0.0015) (0.0016) (0.0007)
Period II −0.0129*** −0.0126*** −0.0140*** −0.0156*** −0.0121***
  (0.0007) (0.0008) (0.0015) (0.0015) (0.0008)
Period III −0.0009 −0.0012 −0.0008 −0.0012 0.0022**
  (0.0009) (0.0009) (0.0019) (0.0019) (0.0010)
Period IV −0.0117*** −0.0112*** −0.0105*** −0.0134*** −0.0085***
  (0.0008) (0.0008) (0.0017) (0.0016) (0.0008)
Eligible × Period II 0.0014* −0.0003 0.0002 0.0023 0.0012
  (0.0008) (0.0009) (0.0017) (0.0018) (0.0008)
Eligible × Period III 0.0134*** −0.0017 0.0153*** 0.0003 0.0147***
  (0.0012) (0.0011) (0.0024) (0.0022) (0.0013)
Eligible × Period IV 0.0026*** −0.0008 0.0000 0.0009 0.0014
  (0.0009) (0.0009) (0.0019) (0.0019) (0.0010)
Constant 0.0063*** 0.0069*** 0.0193*** 0.0210*** 0.0177***
  (0.0011) (0.0011) (0.0014) (0.0014) (0.0007)
Observations 593,028 614,891 145,803 156,147 539,923
  1. Note: *p < .10 **p < .05 ***p < .01. Standard errors clustered for employer in brackets. See Figure 1 for the definition of periods. Covariates in columns (1)-(2) include dummies for sector of economic activity (NACE Rev. 2 sections), dummies for educational level, a dummy for Italian citizenship, age at the beginning of the period, and elapsed duration of the job-relationship at the end of the period. Missing values for the sector of activity have been excluded (only 4 observations in 2011), while missing values for educational level have been kept but adding a specific dummy. Coefficients are available on request.