Myopic Traders, Efficiency and Taxation
This paper explores the welfare implications of a securities transaction tax when informed traders act under short-term objectives. The model presented features speculators who can trade on information of differing time horizons, trade by fully rational uninformed agents, endogenous asset prices and profit maximising firms that can use information contained in stock prices to improve their investment decision. The only value enhancing investment available to firms requires a long-term investment. Therefore investment efficiency can only be improved if stock prices contain long-term information. It is shown that when informed traders act under short-term objectives, a subsidy on short-term trade can improve welfare. This is because trade by short-term informed speculators exerts a positive externality over the profitability of long-term informed trade. A subsidy on short-term trade thus increases the amount of trade on long-term information in equilibrium. As a result stock prices contain more long-term information, which improves investment efficiency. The model takes full account of the effect of a tax on market liquidity and welfare for all market participants.
To our knowledge, this item is not available for
download. To find whether it is available, there are three
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
|Date of creation:||01 Sep 2000|
|Date of revision:|
|Contact details of provider:|| Postal: |
Web page: http://www.economics.ox.ac.uk/
More information through EDIRC
When requesting a correction, please mention this item's handle: RePEc:oxf:wpaper:2000-fe-05. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Monica Birds)
If references are entirely missing, you can add them using this form.