Passion - in the sense of fervent commitment to action - and compassion - understood as sensitive openness for social and ecological concerns - are not a sure formula for business success. Whether social or ecological entrepreneurs, who find themselves under pressure from market competition,...

The paper examines the Porter and induced-innovation hypotheses in a firm model where: (i) the firmhas a vintage capital technology with two complementary factors, energy and capital ; (ii) scrappingis endogenous; (iii) technological progress is energy-saving and endogenous through purposive...