A change in market microstructure: the switch to electronic screen trading on the New Zealand stock exchange |
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Authors: | Michael Blennerhassett Robert G. Bowman |
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Abstract: | The New Zealand Stock Exchange (NZSE) switched from open outcry trading to an electronic screen trading system on June 24, 1991. The change was made by the members of the exchange to improve the trading system and to reduce costs. This paper investigates empirically whether improvement was achieved through a reduction in transaction costs. The tests and results focus on order-flow migration to the exchange from alternative execution locations and changes in bid-ask spreads. On balance, we conclude that transaction costs have declined. |
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Keywords: | Electronic screen trading Market microstructure Transaction costs |
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