Frugal innovation is gaining traction globally, not only in emerging economies, but also in the industrialized world. The root causes of frugality's acceptance as a societal value may however differ according to the social context, especially between the developing and the developed world. In...

By means of a very simple example, this note illustrates the appeal of using Bayesian rather than classical methods to produce inference on hidden states in models of Markovian regime switching. -- Bayesian analysis ; switching regression ; regime changes ; nonlinear filtering