The purpose of this study is to analyze agricultural producers’ willingness to adopt regenerative cover crop practices in their operation and the effects of producer and farm characteristics on willingness to accept (WTA) values. The paper utilizes the double-bounded contingent valuation method to analyze survey responses submitted by producers and non-operating landowners in the Texas and Oklahoma portions of the Southern Great Plains. Results showed an average WTA of $26.38/acre for producers to adopt cover crops and that programs aimed at increasing adoption rates may require more substantial investment compared to those focused on continuity with current adopters.

This paper provides new insights into the effect of birth cohort size on cohort lifetime wages and its sensitivity to the future trajectories of immigration and fertility. The main innovation is to relax the typical assumption of perfect substitution of labor by age. The effect of imperfect substitution of labor by age is to qualify the standard result that smaller birth cohorts are likely to enjoy relatively high wages since that result depends on the size of co-worker cohorts. The positive small cohort effect on lifetime wages therefore depends on demographic patterns, which are simulated here through low and high fertility and immigration projections. The analysis applies to actual and projected cohorts for Australia and tests the sensitivity to alternative demographic parameters, and the substitution and discount parameters. The effects of imperfect substitution can amount several percentage points of lifetime wages.

Dans cet article, je met en cause l’allégation de Duménil et Lévy selon laquelle l’« approche classique » offrirait une alternative au cadre conceptuel d’Arrow-Debreu en théorie micro-économique. Plus spécifiquement, l’argumentation développée dans cet article est à l’effet que les deux propositions principales de l’approche classique — l’égalité des taux de profits d’équilibre et l’indépendance des prix d’équilibre par rapport aux demandes des ménages — sont, respectivement, une caractéristique indissociable de l’équilibre général du modèle Arrow-Debreu et un cas particulier de ce cadre conceptuel. En outre, je soutiens la thèse que les modèles de déséquilibres de Duménil et Lévy sont ad hoc et, pour cette raison, sont incapables de fournir des fondements micro-économiques à la modélisation du comportement hors-équilibre du système économique.