EFICIENŢA INVESTIŢIILOR ALOCATE DEZVOLTĂRII DURABILE / EFFICIENCY OF INVESTMENTS FOR SUSTAINABLE DEVELOPMENT Lect. univ. dr. Burja Camelia - Universitatea „1 Decembrie 1918” Alba Iulia, e-mail: cameliaburja@yahoo.com Abstract: In present time, to realize the society – economy – environment equilibrium it became a major objective of sustainable development. In this context, there are necessary the investments for ecological reconstruction which could generate a favorable impact on the environment, having a contribution to improvement of the economic activities’ efficiency, too. The paper presents some analysis possibilities of project investments’ efficiency, which have an ecological impact. Keywords: sustainable development, investment, environment, efficiency JEL codes: Q01, Q56