Skip to main content
. 2023 Jul 28;9(8):e18574. doi: 10.1016/j.heliyon.2023.e18574

Table 12.

Robustness; estimation results of FMOLS.

Variables Specification models without interaction terms
(VAA)
(PSV)
(GEF)
(REQ)
(ROL)
(COC)
(1) (2) (3) (4) (5) (6)
LNDEBT −1.670*** (−7.888) −2.992*** (−5.009) −5.302*** (−5.900) −2.665*** (−5.093) −5.234*** (−7.567) −5.653** (−3.545)
IQ 2.345*** (5.459) 2.234*** (6.290) 2.109*** (7.231) 3.834*** (5.001) 3.454*** (6.563) 1.112*** (5.456)
LNTFP 1.678*** (5.302) 3.345*** (5.593) 2.331** (3.782) 2.401*** (6.778) 2.449*** (5.450) 2.007** (3.230)
LNINF −1.672*** (−6.860) −1.692*** (−8.567) −2.784*** (−4.991) −2.998** (−3.562) −2.783** (−3.533) −1.666*** (−5.382)
LNGS −2.793*** (−6.761) −3.664*** (−5.455) −4.190 (−1.656) −5.606*** (−5.770) −4.720** (−3.555) −5.671*** (−5.694)
LNEXP 2.567*** (5.090) 3.893** (3.539) 3.453*** (6.678) 4.979** (3.789) 3.578*** (5.773) 4.673*** (6.001)
C 5.879** (4.567) 6.944*** (5.677) 5.444** (4.076) 5.672*** (6.794) 4.893** (3.979) 5.984*** (5.964)
Specification models with interaction terms
LNDEBT −4.487*** (−6.033) −5.674*** (−6.784) −6.884*** (−7.594) −5.973*** (−5.944) −7.702*** (−5.784) −6.743** (−4.078)
IQ 1.675*** (6.789) 1.879*** (6.785) 1.579*** (5.434) 1.873*** (5.833) 1.765* (2.783) 1.842*** (7.873)
LNDEBT × IQ 3.566*** (6.920) 1.903*** (6.563) 1.430*** (6.398) 1.453*** (6.339) 1.874*** (5.873) 1.099*** (6.089)
TFP 1.789 (1.339) 2.395* (2.333) 2.864** (3.443) 2.488*** (5.478) 2.784*** (5.994) 1.998** (3.574)
LNINF −2.673*** (−6.331) −1.033 (−0.453) −1.983* (−2.678) −2.451*** (−4.563) −2.882*** (−5.933) −0.773* (−2.500)
GS −2.687*** (−5.798) −2.933* (−3.094) −3.009*** (−5.390) −2.332** (−3.330) −3.003*** (−5.784) −2.444*** (−6.778)
LNEXP 1.673*** (6.933) 1.893** (2.933) 1.892*** (5.933) 1.831*** (5.733) 1.093*** (4.783) 1.093* (2.809)
C 5.784** (3.890) 6.980*** (5.054) 5.095*** (6.593) 5.558*** (5.984) 4.709*** (5.893) 4.993** (3.463)

Note: *, **, and *** indicate the significance level at 10%, 5%, and 1% respectively. Numbers in the parenthesis indicate the t-statistics.