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Table 8 Sensitivity analysis: self-employed dummy. Self-employed and employed subsample

From: The redistributive effects of copayment in outpatient prescriptions: evidence from Lombardy

Variables

Copayment (Model #1)

Cost (Model #2)

Number of prescriptions

3.705***

8.874***

Female

4.517***

–8.412***

Age

0.386***

1.175***

Number of children

–0.00863

–1.698***

Family members with disability

3.171***

6.652**

Dependent spouse

–1.598***

–8.886***

Self Employed

6.185

6.629

Income classes

 8,000

9.087

7.45

 8,001−15,000

11.41

15.39

 15,001−24,000

12.95

23.81

 24,001−35,000

13.86*

24.81

 35,001−55,000

14.17*

26.16

 55,001−75,000

11.85

14.4

 >75,001

4.776

–1.135

Demand groups

 Group #1

–28.20***

–30.86

 Group #2

–18.68

–47.81

Interaction income classes-demand groups

 8,000 # Group #1

–11.07

–9.335

 8,000 # Group #2

-22.46

-9.417

 8,001−15,000 # Group #1

–12.66

–12.19

 8,001−15,000 # Group #2

–23.89

–19.9

 15,001−24,000 # Group #1

–12.49

–13.5

 15,001−24,000 # Group #2

–25.99

–32.26

 24,001−35,000 # Group #1

–14.62

–16.5

 24,001−35,000 # Group #2

–27.4

–37.17

 35,001−55,000 # Group #1

–16.11*

–21.23

 35,001−55,000 # Group #2

–27.75

–40.61

 55,001−75,000 # Group #1

–15.81

–15.64

 55,001−75,000 #

–25.24

–28.98

 >75,001 # Group #1

–13.87

–11.67

 >75,001 # Group #2

–19.66

–15.39

Interaction income classes-self employed

 8,000 # Self Employed

–10.62

–13.94

 8,001−15,000 # Self Employed

–10.21

–14.02

 15,001−24,000 # Self Employed

–12.8

–17.72

 24,001−35,000 # Self Employed

–13.53*

–21.94

 35,001−55,000 # Self Employed

–12.68

–19.61

 55,001−75,000 # Self Employed

–9.665

–11.28

 >75,001 # Self Employed

–8.995

–9.57

Interaction demand groups-self employed

 Group #1 # Self Employed

–9.045

–3.248

 Group #2# Self Employed

–20.12

–17.39

Interaction income classes-demand groups-self employed

 8,000 # Group #1 # Self Employed

11.78

16.78

 8,000 # Group #2# Self Employed

23.15

16.86

 8,001−15,000 # Group #1 # Self Employed

9.68

8.141

 8,001−15,000 # Group #2# Self Employed

21

12.45

 15,001−24,000 # Group #1 # Self Employed

10.31

3.395

 15,001−24,000 # Group #2# Self Employed

22.55

15.59

 24,001−35,000 # Group #1 # Self Employed

11.44

7.053

 24,001−35,000 # Group #2# Self Employed

23.14

20.38

 35,001−55,000 # Group #1 # Self Employed

12.1

7.858

 35,001−55,000 # Group #2# Self Employed

22.54

19.6

 55,001−75,000 # Group #1 # Self Employed

10.26

6.537

 55,001−75,000 # Group #2# Self Employed

18.97

10.18

 >75,001 # Group #1 # Self Employed

11.57

10.58

 >75,001 # Group #2# Self Employed

19.14

10.25

ASL dummies

included

included

Marital status dummies

included

included

Constant

29.53***

29.71

Observations

1,688,020

1,688,020

R-squared

0.599

0.162

BIC

17,951,547.9

23,988,370.4

  1. Legend: * 10% significance level; ** 5%; *** 1%