The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)
Table 4 The event period descriptive statistics
From: The impact of stock market manipulation on Nigeria’s economic performance
Bid–ask spread | Proportional bid–ask spread | Return | Validity/risk | Volume | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pre-event | Post-event | Pre-event | Post-event | Pre-event | Post-event | Pre-event | Post-event | Pre-event | Post-event | |
Mean | 0.0237 | 0.0359 | 0.1216 | 0.1436 | − 10.0008 | − 10.0006 | 0.0434 | 0.04797 | 10,944,432,333 | 15,657,499,250 |
Median | 0.0227 | 0.0239 | 0.0621 | 0.1373 | − 10.0012 | − 10.0011 | 0.0421 | 0.0687 | 6,753,800,121 | 8,917,284,432 |
Maximum | 0.0673 | 0.0694 | 0.2817 | 0.3911 | 0.0624 | 0.0487 | 0.1721 | 0.1925 | 2,178,412,090 | 4,007,272,241 |
Minimum | 0.0083 | 0.0092 | 0.0083 | 0.0694 | − 10.0437 | − 10.0372 | 0.0171 | 0.0112 | 50,287,112 | 100,941,524 |
St Dev | 0.0088 | 0.0142 | 0.0612 | 0.0389 | 0.0243 | 0.0211 | 0.0224 | 0.0228 | 420,264,515 | 600,759,383 |
Skewness | 1.6042 | 1.4964 | 0.4248 | 0.4125 | 0.3595 | 0.4364 | 1.3211 | 1.4285 | 1.78952 | 2.8772 |
Kurtosis | 2.5867 | 2.0648 | − 11.3122 | 0.0236 | 1.7104 | 1.0867 | 1.4922 | 3.4214 | 6.2439 | 12.4393 |