Publication:
Un modelo de Uso Eficiente de las Infraestructuras Públicas

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2002
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Instituto Complutense de Análisis Económico. Universidad Complutense de Madrid
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Se formula un modelo teórico de equilibrio general con un sector público que acumula infraestructuras, en el que se incorpora un papel productivo para cierto consumo público que contribuye a un uso eficiente del capital público físico. Este modelo, de Uso Eficiente de las Infraestructuras, permite obtener conclusiones radicalmente distintas a las del modelo estándar de consumo público no productivo: bajo la hipótesis de consumo público eficiente, el Ratio de Composición del Gasto Público óptimo (la proporción de gasto público que debe destinarse a consumo) es estrictamente positiva. Este Ratio de Composición óptimo viene determinado por el equilibrio entre dos tipos de efectos que genera el consumo público sobre las infraestructuras nominativas: un efecto eficiencia positivo y un efecto desplazamiento negativo. ABSTRACT:This paper designs a general equilibrium model with a public sector which builds up public infrastructure. Public consumption expenditure is necessary for an efficient use of public physical capital, so there exists a productive effect for such type of public spending. The normative results derived from this framework are then confronted to the standard non-productive public consumption model. Under the assumption of efficient public consumption, the percentage of total public expenditure that must be allocated to consumption is strictly positive. This optimal percentage is obtained from the equilibrium between two opposite effects led by public consumption on public physical capital: a positive efficiency effect and a negative crowding-out effect.
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