The genuine savings criterion and the value of population in an economy with endogenous fertility rate / Kenneth J. Arrow, Alain Bensoussan, Qi Feng, and Suresh P. Sethi -- Continuous time overlapping generations models / Hippolyte d'Albis and Emmanuelle Augeraud-Véron -- Modeling technological change in equipment replacement problems / Chin Hon Tan and Joseph C. Hartman -- Embodied technology adoption under uncertainty / Bruno Cruz and Aude Pommeret -- Viability, optimality, and sustainability in vintage models / Noël Bonneuil -- Embodied technical change and learning-by-doing in a two sector growth model with human capital accumulation / Alberto Bucci, Herb Kunze, and Davide La Torre -- Age-structured optimization models in fisheries bioeconomics : a survey / Olli Tahvonen -- Age-structured models and optimal control in mathematical epidemiology : a survey / David Greenhalgh -- Optimal management of a size distributed forest with respect to timber and non-timber values / Renan-Ulrich Goertz and Angels Xabadia -- Optimal harvesting in a two-species model of size-structured population / Nobuyuki Kato -- Optimisation problems in the management of indigenous plant populations under grazing pressure / Lynne McArthur, John Boland, and Fleur Tiver -- Identification of age-structured contamination sources in ground water / Sergey Lyashko, Dmitry Klyushin, Dmitry Nomirovsky, and Vladimir Semenov.