An empirical investigation of whether Australian capital gains tax reforms influence individual investor behaviour

This paper examines whether an asset's qualification for discounted tax treatment is associated with positive abnormal trading volumes and negative abnormal returns, as would be predicted if investors modified their behaviour to reduce their tax liability. Our examination of 152 initial public offerings (IPOs) documents that there is an incremental increase in abnormal trading volume for those IPOs that have experienced a significant increase in price since listing over those IPOs that have increased only marginally. Although we provide only limited evidence to suggest that this increase in trading volume is accompanied by a decrease in returns, this is not unexpected in a market that has anticipated this type of behaviour by the relatively small proportion of individual investors able to benefit from the discounted tax treatment.