We assume that firms actively manage risk by learning and hedging in two macroeconomic models, a simple cobweb model and a model of monopolistic competition that allows for the analysis of monetary policy and welfare. In both models, firms that learn (by paying a cost to observe the model’s stochastic shocks) face less uncertainty and produce more output than firms that hedge. Parameter or poli...

Hierarchical conceptual clustering has proven to be a useful, although under-explored, data mining technique. A graph-based representation of structural information combined with a substructure discovery technique has been shown to be successful in knowledge discovery. The SUBDUE substructure discovery system provides one such combination of approaches. This work presents SUBDUE and the develop...

A method of developing students’ algorithmic thinking is demonstrated in the paper first. This is followed by an example of a physical problem step by step modeling and several approaches to its solution. These approaches demonstrate possible interdisciplinary learning, which is considered to be a very important part of future teachers’ education. Especially the relationship among physics, comp...

We consider an economic model that features : 1. a continuum of agents 2. an aggregate state of the world over which agents have an infinitesimal influence. We first review the connections between the “eductive viewpoint” that puts emphasis for example on “Strongly Rational Expectations equilibrium” and the standard game-theoretical rationalizability concepts. Besides the Cobweb tâtonnement out...