کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5058973 | 1371771 | 2014 | 4 صفحه PDF | دانلود رایگان |
- We analyze the interaction between a large rational trader and naïve speculators.
- Naïfs trade after a streak of price deviations from the asset's fundamental value.
- Naifs' trading rule does not follow a trend or respond to price trends.
- Nevertheless, the model gives rise to rich patterns of price fluctuations.
- The model synthesizes opposing views regarding the role of rational speculators.
We analyze a simple model of an asset market, in which a large rational trader interacts with “noise speculators” who seek short-run speculative gains, and become active following a prolonged episode of mispricing relative to the asset's fundamental value. The model gives rise to price patterns such as bubble dynamics, positive short-run correlation and vanishing long-run correlation of price deviations from the fundamental value. We argue that this example model sheds light on the question as to whether rational speculators abet or curb price fluctuations.
Journal: Economics Letters - Volume 122, Issue 2, February 2014, Pages 370-373