Table 3 Estimates from a Heckman selection model of informal caregivers’ willingness to pay for a reduction in caregiving hours

Need for respite care (yes vs no)

-.4346946

.2650968

-.3078191

.241379

Need for care training (yes vs no)

.1123579

.3072039

.5794092*

.2401086

.5199144

Need for support group (yes vs no)

.6392571*

.2831547

.2044924

.249197

.2798483

Time spent on caregiving (years)

.0043595

.0131211

.0002093

.0107877

CR^a age

-.0125664

.0133103

.0188605

.0142801

ICr^b age

-.0059938

.0102714

-.036121**

.0114112

-.032947

CR sex (male vs female)

.2834009

.2313533

-.0461488

.2146158

ICr sex (male vs female)

.3725321

.2342962

.2686808

.2316237

CR health state ( good vs poor)

.1482555

.2161994

-.348649

.2034045

Help in supervision

Day supervision (yes vs no)

.1220059

.2909061

-.4346454

.2684354

Night supervision (yes vs no)

-.2626884

.3038744

.3906264

.274308

Contact with formal care(yes vs no)

.8182681**

.2340818

.2617563

.3910642

.2708274

Help in the IADL (yes vs no)

-.3231726

.2284172

.0517261

.2093113

Help in the ADL (yes vs no)

.1015968

.2264547

-.1422265

.2195051

ICr monthly income in €

.464248*

.2084316

.1485086

.0984825

.2038006

ICr relation to CR (partner vs others)

-.1443463

.358649

.9927914**

.3808569

1.151104

ICr and CR live together (yes vs no)

-.3414043

.2921352

-.2461357

.2681222

Because of care ICr neglects his private life (yes vs no)

.5759702*

.2240331

.1842475

.4168215*

.2163943

ICr has good relationship with CR (yes vs no)

-.1568137

.0936673

.1926286*

.092616

.2756634

Exclusion restrictions

CR benefits of professional help (yes vs no)

.5399938*

.2354925

.172739

CR benefits of another informal help (yes vs no)

-.0936673**

.2257446

-.189248

ICr doesn’t have enough time for the himself because of care (yes vs no)

-.6227598**

.2465813

-.199215

Inverse Mills Ratio

.9117173*

.4282136