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Full-Text Articles in Finance and Financial Management
Persistent Dependence In Foreign Exchange Rates? A Reexamination, Atreya Chakraborty
Persistent Dependence In Foreign Exchange Rates? A Reexamination, Atreya Chakraborty
Atreya Chakraborty
We test for stochastic long-memory behavior in the returns series of currency rates for eighteen industrial countries using a semiparametric fractional estimation method. A sensitivity analysis is also carried out to analyze the temporal stability of the longmemory parameter. Contrary to the findings of some previous studies alluding to the presence of long memory in major currency rates, our evidence provides wide support to the martingale model (and therefore for foreign exchange market efficiency) for our broader sample of foreign currency rates. Any inference of long-range dependence is fragile, especially for the major currency rates. However, long-memory dynamics are found …
Waves And Persistence In Merger And Acquisition Activity, Atreya Chakraborty
Waves And Persistence In Merger And Acquisition Activity, Atreya Chakraborty
Atreya Chakraborty
Markov regime-switching and sine-wave models have been used to capture the apparent wave-like behavior in aggregate U.S. merger and acquisition (M and A) activity. In this paper we offer an alternative characterization of the dynamic structure in M and A activity as a strongly dependent or long-memory process.