This paper analyzes a possible formalization of economic evolution, by means of discrete dynamical systems. An evolutionary process is seen as a sequence of states of the structural parameters of the economy. Environmental pressures or internal connicts may force structural changes. The source of changes can be found in the connicts among structures, which… (More)
This paper introduces a model of economic growth, intended for representing developing countries, that exhibits poverty traps. The policies of financial restraint that are usually asked for those countries are shown here to lead to a lower equilibrium. That is, they do not allow those economies to get out of their poverty traps. Sustained investment in the… (More)
We study some features of the processes that have generated high inflation in Latin-American countries. The statistical evidence shows that these inflationary experiences are fractional brownian noises. Several authors showed that self-organized criticality (SOC) processes can constitute an the best explanation of the origin of such noises, but this… (More)
An autoclavable dispenser for plastic disposable pipette tips is described that allows aseptic removal of individual tips while maintaining the sterility of the remaining tips.