The Difference of Capital Input and Productivity in Service Industries: Based on Four Stages Bootstrap-DEA Model

Basedontheconceptofproductivecapitalstock,thispaperestimatedcapitalinputbythreeassettypesofChina’s36serviceindustriesin2003–2015,andcomparedwiththeresultsofwealthcapitalstock.Thisstudyfoundthatthewealthcapitalstockmethodunderestimatestheactualcapitalinputineachsectorinvaryingdegrees,anditmayinterferencetheaccuracyofproductivityevaluationinsectors.Accordingtothenewestimationresultsofcapitalinput,thispaperfurtherappliedfourstagesbootstrap-DEAmethodtoestimateindustrialproductivity,andcalculateditsconfidenceintervals.Thisstudyfoundthat,theyearsofeducationandtheaveragewagehaveasignificantpositiveimpactontheproductivityofserviceindustries;theproductiveserviceshaveashortboardeffectinthewholeserviceindustry.