The financial rates of return from Latin American stock and currency markets are found to be non-normal, non-stationary, non-ergodic and long-term dependent, i.e., they have long memory. The degree of long-term dependence is measured by monofractal (global) Hurst exponents from wavelet...

In this paper we show the degrees of persistence of the time series if eight European stock market indices are measured, after their lack of ergodicity and stationarity has been established. The proper identification of the nature of the persistence of financial time series forms a crucial step...

A careful examination of interest rate time series from different U.S. Treasury maturities by Wavelet Multiresolution Analysis (MRA) suggests that the first differences of the term structure of interest rate series are periodic or, at least, cyclic, non-stationary, long-term dependent, in...

Efforts to simulate turbulence in the financial markets include experiments with the logistic equation: x(t)=kappa x(t-1)[1-x(t-1)], with 0 lt; x(t)lt;1 and 0 = lt; kappa lt; 4. Visual investigation of the logistic equation show the various stability and instability regimes for the various value...

Financial turbulence is a phenomenon occurring in anti - persistent markets. In contrast, financial crises occur in persistent markets. A relationship can be established between these two extreme phenomena of long term market dependence and the older financial concept of financial...

Liberalization of Singapore's financial sector causes its fund management industry to expand rapidly. As of December 1, 1998 there were 191 unit trusts to choose from. Eventually, Singapore, like the USA and Hong Kong, will have more unit trusts than stocks listed on its exchange. Many...

The efficiency of speculative markets, as represented by Fama's 1970 fair game model, is tested on weekly price index data of six Asian stock markets - Hong Kong, Indonesia, Malaysia, Singapore, Taiwan and Thailand - using Sherry's (1992) non-parametric methods. These scientific testing methods...

In an earlier paper (Los, 1998a), the exact and complete return attribution framework of Singer and Karnosky (1995) was extended to include market risk measurements for n countries. Exploiting a selection matrix based on the cash accounting identities, the resulting degenerate portfolio choice...

Modern investment theory takes it for granted that a Security Market Line (SML) is as certain as its quot;correspondingquot; Capital Market Line. (CML). However, it can be easily demonstrated that this is not the case. Knightian non-probabilistic, information gap uncertainty exists in the...

This essay discusses first two competing hypotheses of market efficiency: the classical Efficient Market Hypothesis (EMH) of Samuelson and Fama, and the Fractal Market Hypothesis (FMH) of Mandelbrot and Peters and their weaknesses. The EMH depends on the empirically uncorroborated i.i.d. (=...