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The Externalities Of Taxation On Capital Gain

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The externalities of taxation on capital gain have been a controversial debate among scholars, economists and policy makers along the timeline of ever-changing tax reforms in the history of the United States. This introduction covers all the possible externalities that change in marginal tax rate can have on investors’ incentives and timing to sell, portfolio strategy, tax revenue collected by the government and the social welfare changes.
The first thing to clarify is that there are both positive and negative externalities on the effect of taxation on capital gain. Timing to realize the capital gain is paramount since in the United States long-term gains (typically 1 year or more) will be taxed at a significantly lower rate than ordinary …show more content…

Since a higher tax rate leads to a lower amount of realization on capital gain, it would consequently reduce the transaction fees or commission fees charged by the agencies, which eventually reduces the market activity and causes a welfare loss.
The externality of a lower tax rate on the tax revenue could go either way. When we only consider the static analysis, we have a negative externality that the tax revenue decreases obviously since the same amount of realization is being taxed at a lower rate. When we consider other offsetting factors, positive externalities come in to play important roles. The first positive externality is due to the “unlocking effect” that increases the amount of realization on capital gain, which therefore increases the tax revenue. The other positive externality is that lowering the tax rate on capital gain would result in an increase in tax revenue due to peopleing pay taxes on higher value of their assets when realized since the value of existing stocks increases.
The two articles I’m comparing in this paper, The Effects of Taxation on the Selling of Corporate Stock and The realization of Capital Gains by Feldstein, Slemrod, and Yitzhaki (1980) and Measuring Permanent Responses to Capital-Gains Tax Changes in Panel Data by Burman and Randolph (1994), both primarily focused on the “lock-in” externality, with Feldstein examining externality on tax revenue as well.
Literature reviews
Economists have debated about how realizations of capital

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