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The Official Journal of the Pan-Pacific Association of Input-Output Studies (PAPAIOS)

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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
  1. Source: Author’s Brodgar 2.7.5 Compilation
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