Coordinated investment and operations within renewable portfolio standards is one of the key technologies to meet the renewable energy target and realize the economic operations of the power system.This paper proposes...Coordinated investment and operations within renewable portfolio standards is one of the key technologies to meet the renewable energy target and realize the economic operations of the power system.This paper proposes a unified framework of coordinated planning and financial incentives.Joint investment in renewable energy and energy storage and joint optimization of energy and ancillary services are integrated into a unified framework.Various factors are taken into consideration by the social planner in the centralized electricity market,such as the sitting and sizing of renewable energy and energy storage,charge and discharge efficiency of the energy storage,transmission network constraints,reserve capacity,and financial incentives.This framework provides a tool for the social planner to determine the optimal planning scheme of renewable energy and energy storage.The conclusion derived is that the sum of market revenue and financial subsidies of renewable energy and energy storage is exactly equal to their investment cost which is obtained by the Karush-Kuhn-Tucker(KKT)condition of maximizing social welfare problems.A numerical result based on the modified IEEE-39 bus test system demonstrates the effectiveness of the unified framework.The impact of financial incentives,reserve capacity,and production costs on capital investment are studied.展开更多
A critical problem plaguing regulators in promoting pharmaceutical innovation is to design and select efficient incentive policies. In this study, we develop a stylized model comprising a regulator and two representat...A critical problem plaguing regulators in promoting pharmaceutical innovation is to design and select efficient incentive policies. In this study, we develop a stylized model comprising a regulator and two representative drug producers to evaluate the effects of three incentive policies: Innovation subsides, inclusion new drugs in the health insurance plan, and the combination of the above two policies(also called hybrid policy). Our analysis shows that innovation subsidies and inclusion of new drugs in the health insurance plan can both promote pharmaceutical innovation, but their incentive effects vary in different policy objectives. Specifically, if the regulator aims to improve patient welfare, he should incorporate new drugs into the health insurance plan to expand the accessibility of new drug when the copayment level is low. However, if the regulator aims to improve social welfare, he should choose innovation subsidies when the copayment level is high, and the hybrid policy when the copayment level is low. In particular, with a sufficiently low copayment level, the hybrid policy allows the new drug producer, patients and the regulator to achieve Pareto improvement due to a lower regulator’s innovation subsidy expenditure, higher profits of the new drug producer and consumer surplus.展开更多
The following contribution aims at explaining BNetzA’s role in energy infrastructure regulation and planning/permitting of high-voltage electricity nationwide and cross-border transmission lines. It shows the interpl...The following contribution aims at explaining BNetzA’s role in energy infrastructure regulation and planning/permitting of high-voltage electricity nationwide and cross-border transmission lines. It shows the interplay of the two main regulatory instruments and the planning/permitting task as well as more generally the changing role of the regulator in the era of energy transition. The article is based on two presentations on the topic, one at the VIIth WFER in Mexico in March 2018 and one at a conference on “The Governance of Maintenance and Investment in Infrastructures” of the University of Paris-Dauphine in April 2018.展开更多
基金supported in part by the National Natural Science Foundation of China under Grant 51777126。
文摘Coordinated investment and operations within renewable portfolio standards is one of the key technologies to meet the renewable energy target and realize the economic operations of the power system.This paper proposes a unified framework of coordinated planning and financial incentives.Joint investment in renewable energy and energy storage and joint optimization of energy and ancillary services are integrated into a unified framework.Various factors are taken into consideration by the social planner in the centralized electricity market,such as the sitting and sizing of renewable energy and energy storage,charge and discharge efficiency of the energy storage,transmission network constraints,reserve capacity,and financial incentives.This framework provides a tool for the social planner to determine the optimal planning scheme of renewable energy and energy storage.The conclusion derived is that the sum of market revenue and financial subsidies of renewable energy and energy storage is exactly equal to their investment cost which is obtained by the Karush-Kuhn-Tucker(KKT)condition of maximizing social welfare problems.A numerical result based on the modified IEEE-39 bus test system demonstrates the effectiveness of the unified framework.The impact of financial incentives,reserve capacity,and production costs on capital investment are studied.
基金Supported by the National Social Science Fund of China(18BGL045)。
文摘A critical problem plaguing regulators in promoting pharmaceutical innovation is to design and select efficient incentive policies. In this study, we develop a stylized model comprising a regulator and two representative drug producers to evaluate the effects of three incentive policies: Innovation subsides, inclusion new drugs in the health insurance plan, and the combination of the above two policies(also called hybrid policy). Our analysis shows that innovation subsidies and inclusion of new drugs in the health insurance plan can both promote pharmaceutical innovation, but their incentive effects vary in different policy objectives. Specifically, if the regulator aims to improve patient welfare, he should incorporate new drugs into the health insurance plan to expand the accessibility of new drug when the copayment level is low. However, if the regulator aims to improve social welfare, he should choose innovation subsidies when the copayment level is high, and the hybrid policy when the copayment level is low. In particular, with a sufficiently low copayment level, the hybrid policy allows the new drug producer, patients and the regulator to achieve Pareto improvement due to a lower regulator’s innovation subsidy expenditure, higher profits of the new drug producer and consumer surplus.
文摘The following contribution aims at explaining BNetzA’s role in energy infrastructure regulation and planning/permitting of high-voltage electricity nationwide and cross-border transmission lines. It shows the interplay of the two main regulatory instruments and the planning/permitting task as well as more generally the changing role of the regulator in the era of energy transition. The article is based on two presentations on the topic, one at the VIIth WFER in Mexico in March 2018 and one at a conference on “The Governance of Maintenance and Investment in Infrastructures” of the University of Paris-Dauphine in April 2018.
