We develop an equilibrium model of the labor market to investigate the joint evolution of gender gaps in labor force participation and wages. We do this overall and by task-based occupation and skill, which allows us to study distributional effects. We structurally estimate the model using data...

To rapidly rehabilitate mangrove forests, exotic mangrove species featured by high growth rates have been introduced in China, which would undoubtedly affect the nutrient status, nutrient acquisition and utilization strategies of mangrove plants but the mechanism remain unclear. Qi'ao island...

To solve the actual problem of low C/P value caused by the increase of phosphorus content in sewage, the AOA-SBR was used to carry out experiment on the treatment of different C/P value sewage. The results showed that when the influent C/P value was 40, the best sewage treatment effect was...

This paper derives a closed-form solution for optimally allocating resources among heterogeneous individuals subject to individual-specific allocation constraints assuming the planner has CES-preferences and returns to allocations are non-increasing. We derive the optimal allocation of stimulus...