| Model (5–1) (Pooled least squares) | Model (5–2) (Cross-section random effects) | Model (5–3) (Cross-section weights) | Model (5–4) (Period weights) | Model (5–5) (Period SUR) | Model (5–6) (Pooled least squares with AR(1)) | Model (5–7) (Cross-section weights with AR(1)) |
---|---|---|---|---|---|---|---|
ln((Close)2) | 0.235*** (25.978) | 0.254*** (21.598) | 0.164*** (24.739) | 0.177*** (20.876) | 0.168*** (16.306) | 0.246*** (24.736) | 0.169*** (23.246) |
Daily_infection | − 1.49E−05 (− 0.945) | − 1.51E−05 (− 0.996) | − 2.34E−05** (− 2.157) | − 3.43E−05** (− 2.150) | − 4.88E−05 (− 3.279) | 5.44E−05*** (2.777) | 5.82E−05*** (4.378) |
ln(∆Daily_infection2) | 0.091*** (2.582) | 0.091*** (2.685) | 0.105*** (4.337) | 0.102*** (2.826) | 0.104*** (2.927) | 0.062* (1.752) | 0.064*** (2.668) |
Suspected_infection | − 0.000*** (− 33.811) | − 0.000*** (− 35.152) | − 0.000*** (− 46.005) | − 0.000*** (− 43.731) | − 0.000*** (− 43.146) | − 0.000*** (− 19.818) | − 0.000*** (− 26.181) |
ln((∆Suspected_infection_new)2) | 0.023*** (2.959) | 0.023*** (3.079) | 0.024*** (4.495) | 0.039*** (5.168) | 0.036*** (5.049) | − 0.003 (− 0.388) | − 0.008 (− 1.313) |
ICU_patients | 0.000*** (12.227) | 0.000*** (12.696) | 0.000*** (17.467) | 0.000*** (10.443) | 0.000*** (11.104) | 0.000*** (10.779) | 0.000*** (15.095) |
ln((∆ICU_patients_new)2) | − 0.055*** (− 6.115) | − 0.055*** (− 6.355) | − 0.053*** (− 8.563) | − 0.072*** (− 7.891) | − 0.066*** (− 7.608) | − 0.029*** (− 3.049) | − 0.023*** (− 3.494) |
Death_cases | − 0.009 (− 11.660) | − 0.009 (− 12.102) | − 0.008*** (− 15.112) | − 0.009*** (− 10.205) | − 0.008*** (− 9.604) | − 0.012*** (− 13.024) | − 0.011*** (− 18.265) |
ln((∆Death_cases)2) | 0.772*** (12.361) | 0.773*** (12.845) | 0.632*** (14.677) | 0.734*** (11.831) | 0.712*** (11.287) | 0.779*** (12.457) | 0.661*** (15.612) |
Recovery | 0.000*** (9.244) | 0.000*** (9.589) | 0.000*** (12.040) | 0.000*** (7.429) | 0.000*** (6.812) | 0.000*** (10.804) | 0.000*** (15.612) |
ln((∆Recovery)2) | − 0.050 (− 1.241) | − 0.051 (− 1.298) | − 0.016 (− 0.566) | 0.016 (0.429) | 0.014 (0.405) | − 0.019 (− 0.454) | 0.014 (0.516) |
Total_revenue | − 9.97E−09*** (− 2.082) | − 1.03E−08*** (− 1.649) | − 8.55E−09** (− 2.153) | − 1.01E−08** (− 2.261) | − 9.42E−09* (− 1.725) | − 6.21E−09 (− 1.178) | − 5.29E−09 (− 1.507) |
ln(Operating_cost) | − 0.107*** (− 10.388) | − 0.109*** (− 8.129) | − 0.101*** (− 14.053) | − 0.111*** (− 11.538) | − 0.107*** (− 9.121) | − 0.101*** (− 8.929) | − 0.094*** (− 12.039) |
Operating_profit | − 7.28E−08*** (− 3.767) | − 7.42E−08*** (− 2.957) | − 8.74E−08*** (− 4.204) | − 7.02E−08*** (− 3.889) | − 6.96E−08*** (− 3.163) | − 8.94E−08*** (− 4.206) | − 1.09E−07** (− 4.967) |
ln(Buy_vol) | 0.147** (19.098) | 0.156*** (15.568) | 0.551*** (9.512) | 0.124*** (17.105) | 0.123*** (13.926) | 0.668*** (7.007) | 0.152*** (24.806) |
Industry_5 | 0.655*** (7.554) | 0.656*** (5.823) | − 0.176* (− 1.876) | 0.575*** (7.091) | 0.507*** (5.136) | 0.465*** (3.946) | 0.574*** (9.018) |
Industry_7 | 0.416*** (3.879) | 0.408*** (2.925) | 0.369*** (5.031) | 0.345*** (3.439) | 0.364*** (2.977) | − 0.932*** (− 3.234) | − 0.191** (− 1.918) |
Industry_8 | − 0.794*** (− 3.028) | − 0.767** (− 2.253) |  | − 0.548** (− 2.235) |  | − 0.932*** (− 3.234) | 0.392*** (4.894) |
Industry_9 | − 1.513*** (− 9.354) | − 1.489*** (− 7.089) | − 1.301*** (− 8.246) | − 1.597*** (− 10.559) | − 1.601*** (− 8.691) | − 1.444*** (− 8.119) | − 1.208*** (− 7.289) |
Industry_10 | 0.590*** (4.200) | 0.574*** (3.144) | 0.505*** (5.143) | 0.496*** (3.771) | 0.474*** (2.961) | 0.613*** (3.964) | 0.532*** (4.936) |
Industry_15 | 0.177** (2.202) | 0.175* (1.683) | Â | 0.158** (2.100) | Â | 0.209** (2.379) | 0.105* (1.688) |
Industry_16 | 0.225** (2.375) | 0.211* (1.718) | 0.141** (2.059) | Â | Â | 0.247** (2.376) | 0.176** (2.449) |
Industry_19 | 0.238*** (2.343) | Â | 0.241*** (3.299) | 0.196** (2.068) | Â | 0.248** (2.221) | 0.264*** (3.257) |
Industry_21 | 0.524*** (5.047) | 0.484*** (3.591) | 0.525*** (7.094) | 0.379*** (3.905) | 0.363*** (3.068) | 0.571*** (5.001) | 0.586*** (7.132) |
Industry_22 | − 0.627*** (− 2.744) | − 0.625** (− 2.105) | − 1.029*** (− 6.274) | − 0.502** (− 2.351) | 0.379*** (2.976) | − 0.694*** (− 2.761) | − 1.068*** (− 5.909) |
Industry_23 | 0.267** (2.385) | 0.252* (1.734) | 0.131* (1.681) | 0.343*** (3.276) | − 0.319** (− 2.546) | 0.279** (2.269) | 0.148* (1.723) |
Industry_26 | − 0.205* (− 1.867) |  | − 0.365*** (− 4.907) | − 0.300*** (− 2.919) | − 0.319** (− 2.546) |  | − 0.368*** (− 4.498) |
Industry_27 | − 0.589*** (− 6.437) | − 0.575*** (− 4.831) | − 0.583* (− 8.891) | − 0.562*** (− 6.559) | − 0.514*** (− 4.922) | − 0.590*** (− 5.864) | − 0.574*** (− 8.145) |
Industry_28 | − 0.714*** (− 7.644) | − 0.694*** (− 5.723) | − 0.634*** (− 8.891) | − 0.824*** (− 9.438) | − 0.778*** (− 7.313) | − 0.718*** (− 6.993) | − 0.621*** (− 7.677) |
Industry_29 | 0.579*** (4.122) | 0.569*** (3.120) | 0.442*** (4.761) | 0.505*** (3.847) | 0.459*** (2.869) | 0.618*** (4.004) | 0.492*** (4.792) |
Industry_31 |  |  | − 0.201*** (− 2.663) | − 0.202** (− 2.092) | − 0.289** (− 2.037) |  | − 0.153* (− 1.841) |
Industry_34 | 0.330* (1.953) | Â | 0.199** (1.701) | 0.277* (1.753) | 0.346* (1.798) | Â | 0.244* (1.960) |
Industry_36 | − 1.037*** (− 6.693) | − 1.015*** (− 5.042) | − 0.759*** (− 6.339) | − 0.802*** (− 5.541) | − 0.551*** (− 3.123) | − 1.124*** (− 6.602) | − 0.819*** (− 6.253) |
Industry_37 | − 0.757*** (− 5.256) | − 0.736*** (− 3.933) | − 0.849*** (− 8.504) | − 0.763*** (− 5.661) | − 0.722*** (− 4.401) | − 0.679*** (− 4.285) | − 0.769*** (− 7.432) |
Industry_38 | − 0.785*** (− 5.887) | − 0.771*** (− 4.451) | − 0.894*** (− 9.921) | − 0.721*** (− 5.781) | − 0.661*** (− 4.353) | − 0.813*** (− 5.545) | − 0.902*** (− 9.297) |
Industry_42 | − 1.004*** (− 9.224) | − 0.983*** (− 6.952) | − 0.809*** (− 9.501) | − 0.959*** (− 9.429) | − 0.876*** (− 7.066) | − 0.957*** (− 7.995) | 0.350*** (3.414) |
Industry_43 | 0.328*** (2.859) | 0.299** (2.013) | 0.274*** (3.543) | 0.333*** (3.107) | 0.391*** (2.998) | 0.348*** (2.766) | 0.306*** (3.628) |
Industry_46 | 0.453*** (2.908) | − 0.928*** (− 2.988) | − 0.565*** (− 2.899) | − 0.894*** (− 4.001) | − 0.820*** (− 3.013) | − 0.882*** (− 3.356) | − 0.554*** (− 2.651) |
Industry_47 | 0.555*** (3.133) | 0.557** (2.419) | 0.486*** (4.178) | 0.534*** (3.224) | 0.556*** (2.755) | 0.625** (3.208) | 0.559*** (4.365) |
Industry_50 | 0.565** (2.365) | 0.572* (1.844) | 0.503*** (2.817) | 0.593*** (2.658) | 0.603** (2.216) | 0.271* (1.647) | 0.535*** (2.721) |
Industry_51 | 0.691*** (8.408) | 0.666*** (6.239) | 0.667*** (11.864) | 0.592*** (7.709) | 0.564*** (6.027) | 0.741*** (8.202) | 0.732*** (11.871) |
Industry_52 | 0.842*** (6.559) | 0.827*** (4.957) | 0.608*** (7.442) | 0.592*** (7.709) | 0.675*** (4.612) | 0.889*** (6.299) | 0.656*** (7.231) |
Industry_53 | − 0.523*** (− 3.899) | − 0.536** (− 3.077) | − 0.509*** (− 4.790) | − 0.348*** (− 2.773) | − 0.279* (− 1.827) | − 0.456*** (− 3.093) | − 0.443*** (− 3.754) |
Industry_54 | − 0.499*** (− 2.976) | − 0.476** (− 2.184) | − 0.384*** (− 2.764) | − 0.485*** (− 3.391) | − 0.416** (− 2.175) | − 0.524*** (− 2.839) | − 0.378** (− 2.484) |
Industry_55 | 0.591*** (4.102) | 0.574*** (3.065) | 0.619*** (6.328) | 0.519*** (3.859) | 0.483*** (2.947) | 0.668*** (4.219) | 0.702*** (6.531) |
Industry_56 | 0.600*** (6.219) | 0.584*** (4.660) | 0.476*** (7.112) | 0.551*** (6.103) | 0.593*** (5.394) | 0.609*** (5.742) | 0.488*** (6.581) |
Industry_58 | − 0.576*** (− 3.174) | − 0.561** (− 3.067) | − 0.541*** (− 3.630) |  | − 0.376* (− 1.819) | − 0.558*** (− 2.799) | − 0.539*** (− 3.269) |
Industry_60 | − 0.418** (− 2.089) |  | − 0.440*** (− 2.861) | − 0.355* (− 1.895) |  | − 0.480** (− 2.181) | − 0.506*** (− 2.969) |
Industry_61 | − 0.615*** (− 4.132) | − 0.593*** (− 3.067) | − 0.620*** (− 5.955) | − 0.637*** (− 4.581) | − 0.563*** (− 3.323) | − 0.591*** (− 3.610) | − 0.608*** (− 5.421) |
Industry_62 | − 1.005*** (− 6.354) | − 0.993*** (− 4.831) | − 1.157*** (− 11.701) | − 0.923*** (− 6.246) | − 0.817*** (− 4.534) | − 0.359*** (− 3.052) | − 1.162*** (− 10.533) |
Industry_63 | − 0.353*** (− 3.298) | − 0.336** (− 2.419) | − 0.371*** (− 4.764) | − 0.298*** (− 2.983) | − 0.239* (− 1.958) | − 0.359*** (− 3.052) | − 0.359*** (− 4.258) |
Industry_66 | − 1.123*** (− 8.421) | − 1.134*** (− 6.540) | − 0.982*** (− 9.668) | − 1.065*** (− 8.541) | − 0.993*** (− 6.534) | − 1.119*** (− 7.636) |  |
AR(1) | Â | Â | Â | Â | Â | 0.047*** (10.629) | 0.058*** (13.317) |
Random effect (cross) | Â | Yes | Â | Â | Â | Â | Â |
Adjusted R2 | 0.116 | 0.099 | 0.173 | 0.128 | 0.101 | 0.103 | 0.156 |