Table 6 Summary of hypothesis testing results and interpretation.
Hypothesis | Null hypothesis accepted/rejected? | Interpretation of hypothesis testing results |
|---|---|---|
H01 | p = 0.242 (base model) p = 0.182 (interaction model) Accepted | Remittance paid does not have a significant effect on reducing sending costs. |
H02 | p = 0.045 (base model) but p = 0.114 (interaction model) Accepted (based on interaction model) | While the base model shows a significant negative effect, in the interaction model, the effect becomes statistically insignificant. |
H03 | p = 0.157, Accepted | There is no significant moderating effect of FTRI on the relationship between remittance paid and sending cost. |
H04 | p = 0.002, Rejected | FTRI significantly moderates the relationship between remittance received and receiving cost. |
H05 | p = 0.003 Rejected | FTRI significantly moderates the relationship between the AML Index and sending cost. |
H06 | p = 0.0393 Rejected | FTRI significantly moderates the relationship between the AML Index and receiving cost. |
H07 | Sending Countries:- Base Model: p = 0.1258; Interaction Model: p = 0.0379 Receiving Countries:- Base Model: p = 0.1221; Interaction Model: p = 0.0000 Base Models-Accepted Interaction Models-Rejected | In the base models, errors appear homoscedastic. However, the interaction models show significant heteroscedasticity, suggesting that variability in errors differs across observations in these specifications. |
H08 | Sending Countries:- Base Model: p = 0.1280; Interaction Model: p = 0.0393 Receiving Countries:- Base Model: p = 0.1232; Interaction Model: p = 0.0000 Base Models-Accepted Interaction Models-Rejected | In the base models, the explanatory variables appear exogenous. However, the significant results in the interaction models indicate that endogeneity may be present when interaction terms are included. |
H09 | Sending Countries:- Base Model: p = 0.0242; Interaction Model: p = 0.0260 Receiving Countries:- Base Model: p = 0.0604 (marginally significant); Interaction Model: p = 0.0585 (marginally significant) Sending Models-Rejected Receiving Models-Rejected | The sending country models show significant first-order autocorrelation. The receiving country models are marginally significant, suggesting that autocorrelation may also be present, though less strongly. |
H010 | Sending Countries:- Base Model: p = 0.0000; Interaction Model: p = 0.0000 Receiving Countries:- Base Model: p = 0.1219; Interaction Model: p = 0.1212 Sending Models-Rejected Receiving Models-Accepted | For sending countries, the significant Sargan Test results suggest that the instruments used might be invalid. In contrast, for receiving countries, the instruments appear valid as the null is not rejected. |