We study an optimal growth model with one-hoss-shay vintage capital, where labor resources can be allocated freely either to production, technology adoption or capital maintenance. Technological progress is partly embodied. Adoption labor increases the level of embodied technical progress....

The Status of the World’s Soil Resources Report identified in 2015 soil pollution as a major threat to all the services provided by soils (FAO and ITPS, 2015). This paper develops a spatial growth model for an agricultural economy where pollution diffuses in the soil. In order to produce, the...