Showing 1 - 10 of 18
Using a panel cointegration approach to estimate the agricultural total factor productivity in China
Persistent link: https://www.econbiz.de/10010913592
The symmetric quadratic knapsack problem (SQKP), which has several applications in machine scheduling, is NP-hard. An approximation scheme for this problem is known to achieve an approximation ratio of (1+ϵ) for any ϵ0. To ensure a polynomial time complexity, this approximation scheme needs an...
Persistent link: https://www.econbiz.de/10011052402
Given k identical salesmen, where k⩾2 is a constant independent of the input size, the min–max k-traveling salesmen problem on a tree is to determine a set of k tours for the salesmen to serve all customers that are located on a tree-shaped network, so that each tour starts from and returns...
Persistent link: https://www.econbiz.de/10011052412
We consider a problem faced by a buying office for one of the largest retail distributors in the world. The buying office plans the distribution of goods from Asia to various destinations across Europe. The goods are transported along shipping lanes by shipping companies, many of which have...
Persistent link: https://www.econbiz.de/10010574182
Persistent link: https://www.econbiz.de/10005337430
We consider a ship routing problem in which multiple vessels have to perform pickups and deliveries of cargoes at various locations. The loading and unloading time of cargoes at pickup and delivery locations is significant, and at each of these locations we need to assign a time slot to each...
Persistent link: https://www.econbiz.de/10009023730
The manufacturing base in the Pearl River Delta of China is moving westwards, where the Pearl River system has extensive coverage. This makes container barge transport a new growth area for Hong Kong Port. Traditionally, Hong Kong Port has been the main gateway for containers transported through...
Persistent link: https://www.econbiz.de/10010605839
Persistent link: https://www.econbiz.de/10005516236
The central objective of the present paper is to examine how university bioscientists select their research agendas, with special attention to biotechnology firms' influence on those agendas. Among other issues, we will assess UIRs' potential effects on the private appropriability of the...
Persistent link: https://www.econbiz.de/10005493596
<Para ID="Par5">This study investigates how organizational slack affects corporate social performance (CSP). Based on a sample of 1,299 Chinese listed firms, our results show that only unabsorbed slack contributes to CSP and the positive relationship between unabsorbed slack and CSP is consistent with the...</para>
Persistent link: https://www.econbiz.de/10011241766