Table 4 Reduced form and structural estimates of the probability of employment growth conditional on prior employment level inside and outside Enterprise Protection Zones as per equation (6) using Probit model with cluster robust standard errors
From: Mandatory costs by firm size thresholds: firm location, growth and death in Sri Lanka
Reduced form parameters: EPZ i = 1 | Marginal effect a |
|---|---|
\( {\mathrm{L}}_{\mathrm{it}}\le 13,\ {\mathrm{E}}_{\mathrm{it}}^{{\mathrm{L}}^{-}}=1:\ {\upbeta}_{{\mathrm{L}}^{-}}+{\upbeta}_{\mathrm{E}\mathrm{PZ}}+{\upgamma}_{{\mathrm{L}}^{-}} \) | 0.089** (0.023) |
Lit = 14 : βEPZ | 0.123 (0.079) |
\( {\mathrm{L}}_{\mathrm{it}}\ge 15,\ {E}_{\mathrm{it}}^{{\mathrm{L}}^{+}}=1:\ {\upbeta}_{{\mathrm{L}}^{+}}+{\upbeta}_{\mathrm{EPZ}}+{\upgamma}_{{\mathrm{L}}^{+}} \) | 0.190** (0.019) |
Reduced form parameters: EPZi = 0 | |
\( {\mathrm{L}}_{\mathrm{it}}\le 13,\ {\mathrm{E}}_{\mathrm{it}}^{{\mathrm{L}}^{-}}=1:\ {\upbeta}_{{\mathrm{L}}^{-}} \) | -0.166** (0.015) |
Lit = 14: reference | − |
\( {\mathrm{L}}_{\mathrm{it}}\ge 15,\ {\mathrm{E}}_{\mathrm{it}}^{{\mathrm{L}}^{+}}=0:\ {\upbeta}_{{\mathrm{L}}^{+}} \) | 0.048** (0.013) |
Structural estimates | |
Hypothesis: Relative to nonEPZ firms of like size and vintage… | Marginal effect b |
βEPZ > 0: EPZ firms grow faster at the threshold | 0.123** (224.1) |
\( {\upbeta}_{\mathrm{EPZ}}+{\upgamma}_{{\mathrm{L}}^{-}}>0 \): EPZ firms grow faster below the threshold | 0.255** (160.7) |
\( {\upbeta}_{\mathrm{EPZ}}+{\upgamma}_{{\mathrm{L}}^{+}}>0 \): EPZ firms grow faster above the threshold | 0.142** (2952) |
Hypothesis: Relative to same sector firms below the threshold… | |
\( {\upbeta}_{{\mathrm{L}}^{+}}-{\upbeta}_{{\mathrm{L}}^{-}}>0 \): nonEPZ firms grow faster above the threshold | 0.214** (21.2) |
\( \left({\upbeta}_{{\mathrm{L}}^{+}}+{\upgamma}_{{\mathrm{L}}^{+}}\right)-\left({\upbeta}_{{\mathrm{L}}^{-}}+{\upgamma}_{{\mathrm{L}}^{-}}\right)>0 \): EPZ firms grow faster above the threshold | 0.101** (41.5) |
Hypothesis: Relative to EPZ firms at the threshold…. | |
\( {\upgamma}_{{\mathrm{L}}^{-}}=0 \) : EPZ firms grow at a different rate below the threshold | 0.133* (3.5) |
\( {\upgamma}_{{\mathrm{L}}^{+}}=0 \) : EPZ firms grow at a different rate above the threshold | 0.020 (0.01) |