- This paper uses the data envelopment analysis (DEA) technique tool to explore the efficiency of various sectors in the Spanish economy. The findings demonstrate that Spain's public sector is inefficient in using capital and labour. By contrast, however, the country's finance sector is the most efficient of all of its main sectors. A comparison of various sectors in Spain and Germany reveals that the German manufacturing sector is more efficient than that of Spain, but Spain's tourism sector is much more efficient than that in Germany. 2012 Inderscience Enterprises Ltd.