Chiral polyhedra in ordinary euclidean space E3 are nearly regular polyhedra; their geometric symmetry groups have two orbits on the flags, such that adjacent flags are in distinct orbits. This paper completely enumerates the discrete infinite chiral polyhedra in E3 with finite skew faces and finite skew vertex-figures. There are several families of such polyhedra of types {4, 6}, {6, 4} and {6...

We consider rent-seeking contests with two players that each have private information about their own cost of effort. We consider both discrete and continuous distributions of costs and give results for each case, focusing on existence of equilibria. JEL Classification: D72; C72

weak economic performance that has been observed in countries with rich natural resources is called resource curse. there have been many studies on resource curse, especially the adverse effects of this phenomenon on economic growth. income inequality or unfair distribution of income is one of the main characteristics of resource rich countries. but, there has not been much research on the effe...

Fractions obtained from partitioning of aerial methanolic extract of Euphorbia Aellenii with chloroform (E2), ethyl acetate (E3), n-butanol (E4) and water (E5) were investigated in vitro for their phytotoxicity, insecticidal, anti-leishmanial, cytotoxicity, antibacterial and antifungal activities. Sample E2 appeared to have significant phytotoxic activity. In the insecticidal screening study o...

On the Optimality of Search Matching Equilibrium When Workers Are Risk Averse This paper revisits the normative properties of search-matching economies when homogeneous workers have concave utility functions and wages are bargained over. The optimal allocation of resources is characterized first when information is perfect and second when search effort is not observable. To decentralize these o...

We present certain duality results on comparative statics on competitive rent vectors in the rental housing market model. In the model, apartments as indivisible goods are classified into a finite number of categories, and are traded for one composite commodity. Our concern is about certain general properties of the behavior of rents with parameter changes. In particular, the rent changes are i...

I develop a model of rent seeking with informational foundations and an arbitrary number of rent seekers, and I compare the results with Tullock’s (1980) classic model where the influence activities are “blackboxed.” Given the microfoundations, the welfare consequences of rent seeking can be studied. In particular, I show that competition among rent seekers can be socially beneficial, since the...

We construct an intertemporal model of rent-maximizing behaviour on the part of a timber harvester under potentially multi-dimensional risk as well as geographical heterogeneity. Subsequently, we use recursive methods (in particular, the method of dynamic programming) to characterize the optimal policy function, the rent-maximizing timber-harvesting profile. One noteworthy feature of our applic...