Differential Rates of Return and Residual Information Sets (A Discrete Approach)
It is our purpose here to show the deep relationship between differential rates and their underlying information sets. To accomplish our task, we will make for the following stages: In the first place, we deal with scaled changes along a period and conditional rates of change within a discrete environment. Next, rings and algebras of sets are addressed, so as to provide information sets with a suitable structure and give grounds to differential rates. Afterwards, differential rates are presented rigourosly, and two important lemmas follow through: the first one makes possible the use of differential rates with restrictive assumptions on their information sets, as customary applications seem to require. The second lemma attempts a broader outcome in a general setting so as to cope with differential rates defined on more realistic information sets. Both lemmas contributerigorously to shape definitions of narrow and broad differential rates on residual information sets.
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- Grossman, Sanford J & Stiglitz, Joseph E, 1980.
"On the Impossibility of Informationally Efficient Markets,"
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American Economic Association, vol. 70(3), pages 393-408, June.
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- Rodolfo Apreda, 1998. "Dynamic Arbitrage Gaps for Financial Assets," CEMA Working Papers: Serie Documentos de Trabajo. 134, Universidad del CEMA.
- Fama, Eugene F, 1970. "Efficient Capital Markets: A Review of Theory and Empirical Work," Journal of Finance, American Finance Association, vol. 25(2), pages 383-417, May.
- Rodolfo Apreda, 1999. "Transactionally Efficient Markets, Dynamic Arbitrage and Microstructure," CEMA Working Papers: Serie Documentos de Trabajo. 151, Universidad del CEMA.
- Rodolfo Apreda, 2000. "A transaction costs approach to financial assets rates of return," CEMA Working Papers: Serie Documentos de Trabajo. 161, Universidad del CEMA. Full references (including those not matched with items on IDEAS)
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