Enhanced Index Tracking is the problem of selecting a portfolio that should generate excess return with respect to a benchmark index. Here we propose a large-size linear optimization model for Enhanced Index Tracking that selects an optimal portfolio according to a new stochastic dominance...

This paper proposes a novel method of global optimization based on host-parasite co-evolution. It also develops a Fortran-77 code for the algorithm. The algorithm has been tested on 100 benchmark functions (of which the results of 32 relatively harder problems have been reported). In its search...

We show that, in a pure exchange smooth economy, a redistribution of endowments involving singular economies can be supported by a unique and continuous path of supporting equilibrium price vectors if this redistribution is the projection of a path on the equilibrium manifold transversal to the...

This paper sets up an endogenous growth model to examine the effects of an expansion of defense spending share on inflation, economic growth and welfare. It is found that: (i) an increase of defense spending share will lower the inflation rate and stimulate the economic growth. (ii) from the...

So-called “search equilibrium models” typically have multiple equilibria. In almost all studies on these models, only steady states are considered mainly because it is difficult to find non-stationary equilibria. This difficulty does not disappear even if we consider finite-horizon...

Suppose a group of individuals must decide whether to undertake a public project. The private commodity space, from which are also drawn the inputs for the public good, exhibits the Riesz decomposition property. We give a sufficient condition for the existence of a feasible provision of the...

The Economic Freedom of North America is a widely used political economy indicator related to outcomes such as entrepreneurship, equity prices, housing prices, and migration. As a result, relative rankings are often mentioned in policy discussions. The ranking of regions based on economic...

In this paper, we consider the existence of a sequence of convex sets that has an approximation property for the equilibrium sets in the bounded rational environments. We show that the bounded rational equilibrium multivalued map is approximated with arbitrary precision in the abstract...

The relative efficiency of financial markets can be evaluated using algorithmic complexity theory. Using this approach we detect decreases in efficiency rates of the major stocks listed on the Sao Paulo Stock Exchange in the aftermath of the 2008 financial crisis.

In this paper, we show a similar concept of stability of the adjustment process concerning the difference between the weighted average and the actual value. Because the adjustment process includes only one eigenvalue of zero, and thus one dimension of freedom, it is difficult to apply the...