为了验证本书的主假设,本书设立以下7个模型进行回归,模型如下:

模型1:Log(Yentry_m)=ϕ0+ϕ1Xr_dis+ϕ2Cc_ris+ϕ3Ctri+ϕ4Ci_flo+ϕ5Cc_tax+ϕ6Ce_gro+ϕ7Cg_per+ϕ8Crev+ϕ9Cc_siz+ϕ10Cind+ε0 (4.5)

模型2:Log(Yentry_m)=Υ0+Υ1Xn_dis+Υ2Cc_ris+Υ3Ctri+Υ4Ci_flo+Υ5Cc_tax+Υ6Ce_gro+Υ7Cg_per+Υ8Crev+Υ9Cc_siz+Υ10Cind+ε1 (4.6)

模型3:Log(Yentry_m)=η0+η1Xc_dis+η2Cc_ris+η3Ctri+η4Ci_flo+η5Cc_tax+η6Ce_gro+η7Cg_per+η8Crev+η9Cc_siz+η10Cind+ε2 (4.7)

模型4:Log(Yentry_m)=ζ0+ζ1Xl_dis+ζ2Cc_ris+ζ3Ctri+ζ4Ci_flo+ζ5Cc_tax+ζ6Ce_gro+ζ7Cg_per+ζ8Crev+ζ9Cc_siz+ζ10Cind+ε3 (4.8)

模型5:Log(Yentry_m)=ψ0+ψ1Xe_dis+ψ2Cc_ris+ψ3Ctri+ψ4Ci_flo+ψ5Cc_tax+ψ6Ce_gro+ψ7Cg_per+ψ8Crev+ψ9Cc_siz+ψ10Cind+ε4 (4.9)

模型6:Log(Yentry_m)=ω0+ω1Xc_r_dis+ω2Cc_ris+ω3Ctri+ω4Ci_flo+ω5Cc_tax+ω6Ce_gro+ω7Cg_per+ω8Crev+ω9Cc_siz+ω10Cind+ε5 (4.10)

模型7:Log(Yentry_m)=υ0+υ1Xc_m_dis+υ2Cc_ris+υ3Ctri+υ4Ci_flo+υ5Cc_tax+υ6Ce_gro+υ7Cg_per+υ8Crev+υ9Cc_siz+υ10Cind+ε6 (4.11)

模型8:Log(Yentry_m)=κ0+κ1Xr_dis+κ2Mm_ope+κ3Xr_dis×Mm_ope+κ4Cc_ris+κ5Ctri+κ6Ci_flo+κ7Cc_tax+κ8Ce_gro+κ9Cg_per+κ10Crev+κ9Cg_siz+κ10Cind+ε7 (4.12)(www.daowen.com)

模型9:Log(Yentry_m)=π0+π1Xn_dis+π3Mm_ope+π4Xn_dis×Mm_ope+π5Cc_ris+π6Ctri+π7Ci_flo+π8Cc_tax+π9Ce_gro+π10Cg_per+π11Crev+π12Cg_siz+π13Cind+ε8 (4.13)

模型10:Log(Yentry_m)=θ0+θ1Xc_dis+θ2Mm_ope+θ3Xc_dis×Mm_ope+θ4Cc_ris+θ5Ctri+θ6Ci_flo+θ7Cc_tax+θ8Ce_gro+θ9Cg_per+θ10Crev+θ11Cc_siz+θ12Cind+ε9 (4.14)

模型11:Log(Yentry_m)=0+1Xl_dis+2Mm_ope+3Xl_dis×Mm_ope+4Cc_ris+5Ctri+6Ci_flo+7Cc_tax+8Ce_gro+9Cg_per+10Crev+11Cc_siz+12Cind+ε10 (4.15)

模型12:Log(Yentry_m)=ν0+ν1Xe_dis+ν2Mm_ope+ν3Xe_dis×Mm_ope+ν4Cc_ris+ν5Ctri+ν6Ci_flo+ν7Cc_tax+ν8Ce_gro+ν9Cg_per+ν10Crev+ν11Cc_siz+ν12Cind+ε11 (4.16)

模型13:Log(Yentry_m)=χ0+χ1Xc_m_dis+χ2Mm_ope+χ3Xc_r_dis×Mm_ope+χ4Cc_ris+χ5Ctri+χ6Ci_flo+χ7Cc_tax+χ8Ce_gro+χ9Cg_per+χ10Crev+χ11Cc_siz+χ12Cind+ε13 (4.17)

模型14:Log(Yentry_m)=σ0+σ1Xc_r_dis+σ2Mm_ope+σ3Xc_r_dis×Mm_ope+σ4Cc_ris+σ5Ctri+σ6Ci_flo+σ7Cc_tax+σ8Ce_gro+σ9Cg_per+σ10Crev+σ11Cc_siz+σ12Cind+ε12 (4.18)

模型15:Log(Yentry_m)=τ0+τ1Xc_dis+τ2Mv_op+τ3Xc_dis×Mv_op+τ4Cc_ris+τ5Ctri+τ6Ci_flo+τ7Cc_tax+τ8Ce_gro+τ9Cg_per+τ10Crev+τ11Cc_siz+τ12Cind+ε14 (4.19)