
| Imperfect competition in the recycling industry |
| A non-substitution theorem with non-constant returns to scale and externalities |
| The double role of skilled labor, new technologies and wage inequality |
| Chaotic dynamics of financing investment |
| Tax evasion and state productivity - an experimental study |
| Steady-state growth and distribution with an endogenous direction of technical change |
| Macroeconomic adjustment under an external and fiscal constraint: a fix-price/flex-price approach |