In this paper the author analyzes the behavior of exchange rates expectations for four currencies, by considering a re-calculation and an extension of Resende and Zeidan (Expectations and chaotic dynamics: empirical evidence on exchange rates, Economics Letters, 2008). Considering Lyapunov...

In this paper the author analyzes the behavior of exchange rates expectations for four currencies, by considering a re-calculation and an extension of Resende and Zeidan (Expectations and chaotic dynamics: Empirical evidence on exchange rates, Economics Letters, 2008). Considering Lyapunov...

The objective of the paper is to obtain results on the behavior of a specific plane discontinuous dynamical system in the neighbourhood of the singular point. A new technique of investigation is presented. Conditions for existence of the foci and centres are proposed. The focus-centre problem...

Plouffe studied the recurrences , and (defined below). Plouffe's constant [1] arises from the recurrence . We present a closely related constant, ç, arising from the recurrence and like Plouffe's constant it has a feasible algorithm (more efficient) for its th digit and can be constructed by a...

In this paper, we focus on the stochastic (chaotic) attributes of the US dollar-based exchange rates for Brazil, Russia, India, China and South Africa (BRICS) using a long-run monthly dataset covering 1812M01-2017M12, 1814M01-2017M12, 1822M07-2017M12, 1948M08-2017M12, and 1844M01-2017M12,...

Literature on punctuated equilibrium theory has aimed to explain the causes of policy punctuations. What remains unknown are the consequences of those punctuations (and other size changes) for organizations. Specifically, this study analyzes how budgetary changes affect organizational...

We study generalized indicators of sensitivity to initial conditions and orbit complexity in topological dynamical systems. The orbit complexity is a measure of the asymptotical behavior of information that is necessary to describe the orbit of a given point. The indicator generalizes, in a...

Using the theory of dynamic systems with random structure the representation of nonstationary continuous time, generally non-Gaussian, processes with distinguishable states is considered. Switching of the partial subsystems is intended to be a Poisson point process and so the model has the...