This paper deals with the calculation of shadow wages for family labour in agriculture. Using the existence of a duality between input distance and cost functions, we use the former to derive individual labour shadow prices for a sample of Spanish citrus fruit producers. Our results show that...

This paper deals with the calculation of shadow wages for family labour in agriculture. Using the existence of a duality between input distance and cost functions, we use the former to derive individual labour shadow prices for a sample of Spanish citrus fruit producers. Our results show that...

In the last decades transport activities persistently increased in the EU27 and were strongly coupled to growth in gross domestic product. Like most production processes, they are inevitably linked with the generation of environmentally hazardous by-products, such as CO<Subscript>2</Subscript> emissions. This leads to...</subscript>

This paper analyses the evolution of total factor productivity and its decomposition between 1986 and 2005 in the Spanish port authorities using a parametric distance function approach. During this period, the Spanish port authorities experienced three important regulatory changes. The results...