Some Performance Guarantees of Global LASSO with Local Assumptions for Convolutional Sparse Design Matrices

Author(s):  
Avishek Ghosh ◽  
Kannan Ramachandran
Author(s):  
Andre Marcorin de Oliveira ◽  
Vineeth Satheeskumar Varma ◽  
Romain Postoyan ◽  
Irinel-Constantin Morarescu ◽  
Jamal Daafouz ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Lei Shi ◽  
Yujia He ◽  
Masamitsu Onishi ◽  
Kiyoshi Kobayashi

Sustainable operation of public-private partnership (PPP) infrastructure projects that are characterized by considerable external benefits is of vital importance. However, a liquidity shock might trigger an inefficient liquidation of a project by the special purpose vehicle (SPV) and the bank, whose objectives are to maximize the profits generated by the project. This study argues that performance guarantee and subsidy policies implemented by the government play a role in encouraging socially efficient decision-making by the SPV and the bank to ensure the continuation of socially valuable projects. The results show that both government subsidy and performance guarantee policies are effective in avoiding the inefficient liquidation of PPP infrastructure projects when the external benefits are large and certain. However, a performance guarantee policy might lead to inefficient continuation when the external benefits of a project are uncertain. Finally, we discuss the possibility that an integrated policy combining performance guarantees and government subsidies improves the efficiency of a PPP infrastructure project.


2020 ◽  
Vol 68 (3) ◽  
pp. 834-855 ◽  
Author(s):  
Yuhang Ma ◽  
Paat Rusmevichientong ◽  
Mika Sumida ◽  
Huseyin Topaloglu

Many revenue management problems require making capacity control and pricing decisions for multiple products. The decisions for the different products interact because either the products use a common pool of resources or the customers choose and substitute among the products. When pricing airline tickets, for example, different itinerary products use the capacities on common flight legs and the customers choose and substitute among different itinerary products that serve the same origin-destination pair. Finding the optimal capacity control and pricing decisions in such problems can be challenging because one needs to simultaneously consider the capacities available to serve a large pool of products. In “An Approximation Algorithm for Network Revenue Management under Nonstationary Arrivals,” Ma, Rusmevichientong, Sumida, and Topaloglu develop efficient methods to make decisions with performance guarantees in high-dimensional capacity control and pricing problems.


2011 ◽  
Vol 39 (2) ◽  
pp. 1180-1210 ◽  
Author(s):  
Min Qian ◽  
Susan A. Murphy

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