Estimation results: cost and profit inefficiency
| Coefficient | Coefficient | ||
|---|---|---|---|
| Cost function | Profit function | ||
| Constante | β0 | 0.703**(2.151) | 18.577* (60.426) |
| Ln(Y1) | β1 | 0.047(0.474) | 0.257**(2.375) |
| Ln(Y2) | β2 | 1.009*(8.612) | −1.585*(−12.168) |
| Ln(Pk/PL) | α1 | 0.185* (3.214) | −0.388* (−6.015) |
| Ln(PF/PL) | α2 | 0.267* (5.379) | −0.259* (−5.489) |
| Ln(Y1)2 | β11 | 0.016* (4.027) | 0.001 (0.199) |
| Ln(Y2)2 | β22 | 0.049* (4.213) | 0.127*(9.261) |
| Ln(Pk/PL)2 | α11 | 0.005(1.254) | 0.029* (7.489) |
| Ln(PF/PL)2 | α22 | −0.021* (−9.080) | 0.02*(5.568) |
| Ln(Pk/PL)Ln(PF/PL) | α12 | −0.023* (−3.770) | 0.069*(16.611) |
| Ln(Y1)Ln(Y2) | β12 | −0.055*(−3.999) | −0.042** (−2.528) |
| Ln(Pk/PL)Ln(Y1) | λ11 | 0.034*(3.028) | −0.001 (−0.065) |
| Ln(PF/PL)Ln(Y1) | λ21 | −0.026** (−2.144) | 0.053* (4.221) |
| Ln(Pk/PL)Ln(Y2) | λ12 | −0.051* (−4.065) | 0.005 (0.515) |
| Ln(PF/PL)Ln(Y2) | λ22 | 0.05* (4.293) | −0.059* (−4.178) |
| Ln(PF) | −0.146*(−6.486) | −0.059* (−2.948) | |
| Explanatory variables | |||
| DIG-PAY | −14.659*(−15.056) | −3.815*(−2.748) | |
| BUY-ONLINE | 4.162*(4.574) | −7.447* (−4.910) | |
| PAY-BILLS | −4.218* (−3.997) | 9.187* (6.665) | |
| NUM-MOB-TRAN | −0.323*(−16.901) | −0.257*(−7.683) | |
| CARD | 15.761*(16.955) | 6.741* (4.598) | |
| ATM | 0.746*(15.958) | 000.009* (14.570) | |
| Control variables | |||
| ROA | −2.844*(−9.747) | −4.503* (−14.540) | |
| Size | −1.1*(−36.559) | −0.726* (−5.555) | |
| Sigma-squaned | 1.521*(15.032) | 1.382* (12.369) | |
| Gamma | 0.990*(746.687) | 0.992* (707.927) | |
| Log likelihood function | −17,41,278 | 175.359 | |
| LR test | 415.274 | 1609.749 | |
| Coefficient | Coefficient | ||
|---|---|---|---|
| Cost function | Profit function | ||
| Constante | β0 | 0.703**(2.151) | 18.577* (60.426) |
| Ln(Y1) | β1 | 0.047(0.474) | 0.257**(2.375) |
| Ln(Y2) | β2 | 1.009*(8.612) | −1.585*(−12.168) |
| Ln(Pk/PL) | α1 | 0.185* (3.214) | −0.388* (−6.015) |
| Ln(PF/PL) | α2 | 0.267* (5.379) | −0.259* (−5.489) |
| Ln(Y1)2 | β11 | 0.016* (4.027) | 0.001 (0.199) |
| Ln(Y2)2 | β22 | 0.049* (4.213) | 0.127*(9.261) |
| Ln(Pk/PL)2 | α11 | 0.005(1.254) | 0.029* (7.489) |
| Ln(PF/PL)2 | α22 | −0.021* (−9.080) | 0.02*(5.568) |
| Ln(Pk/PL)Ln(PF/PL) | α12 | −0.023* (−3.770) | 0.069*(16.611) |
| Ln(Y1)Ln(Y2) | β12 | −0.055*(−3.999) | −0.042** (−2.528) |
| Ln(Pk/PL)Ln(Y1) | λ11 | 0.034*(3.028) | −0.001 (−0.065) |
| Ln(PF/PL)Ln(Y1) | λ21 | −0.026** (−2.144) | 0.053* (4.221) |
| Ln(Pk/PL)Ln(Y2) | λ12 | −0.051* (−4.065) | 0.005 (0.515) |
| Ln(PF/PL)Ln(Y2) | λ22 | 0.05* (4.293) | −0.059* (−4.178) |
| Ln(PF) | −0.146*(−6.486) | −0.059* (−2.948) | |
| DIG-PAY | −14.659*(−15.056) | −3.815*(−2.748) | |
| BUY-ONLINE | 4.162*(4.574) | −7.447* (−4.910) | |
| PAY-BILLS | −4.218* (−3.997) | 9.187* (6.665) | |
| NUM-MOB-TRAN | −0.323*(−16.901) | −0.257*(−7.683) | |
| CARD | 15.761*(16.955) | 6.741* (4.598) | |
| ATM | 0.746*(15.958) | 000.009* (14.570) | |
| ROA | −2.844*(−9.747) | −4.503* (−14.540) | |
| Size | −1.1*(−36.559) | −0.726* (−5.555) | |
| 1.521*(15.032) | 1.382* (12.369) | ||
| 0.990*(746.687) | 0.992* (707.927) | ||
| −17,41,278 | 175.359 | ||
| 415.274 | 1609.749 | ||
Note(s): Standard errors in parentheses***p < 0.01, **p < 0.05, *p < 0.1