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The economies of scale in hub location is usually modeled by a constant parameter, which captures the benefits companies obtain through consolidation. In their article “Single allocation hub location with heterogeneous economies of scale,” Rostami et al. ...

We study the single allocation hub location problem with heterogeneous economies of scale (SAHLP-h). The SAHLP-h is a generalization of the classical single allocation hub location problem (SAHLP), in which the hub-hub connection costs are piecewise ...

This paper uses lottery allocation of retail store entry licenses as a natural experiment to understand the size and source of returns to scale in retail.

In 2014, Washington State used a lottery system to allocate licenses to firms in the newly legalized retail cannabis industry, generating random variation in how many stores entrepreneurs were able to own. We observe highly detailed data on all subsequent ...

General hospitals across the world are becoming larger (i.e., admitting more patients each year) and more complex (i.e., offering a wider range of services to patients with more diverse care needs). Prior work suggests that an increase in patient volume ...

Rather than organizing disposal of consumer-generated waste themselves, many states and countries have passed legislation that makes producers responsible for the proper disposal (i.e., recycling) of the products that they bring to the market. We study ...

Additive manufacturing offers great potential for both product and process innovation in manufacturing across a wide range of industry sectors. To date, most applications that have been reported use additive manufacturing to produce either ...

The evolution of globalization has provided a vast array of opportunities to the whole world. Companies have moved across the boundaries to take advantage of wider customer base. While exploring benefits of globalization and moving across ...

Software as a Service SaaS delivers a bundle of applications and services through the Web. Its on-demand feature allows users to enjoy full scalability and to handle possible demand fluctuations at no risk. In recent years, SaaS has become an appealing ...

A majority of Internet service providers (ISPs) support connectivity to the entire Internet by transiting their traffic via other providers. Although the transit prices per megabit per second (Mbps) decline steadily, the overall transit costs of these ...

Measuring rural investment efficiency is an important way to further optimize resources distribution and advance investment strategy. Firstly, it builds up DEA model to estimate efficiency of rural infrastructure investment, selects panel data between ...

The basic idea behind cloud computing is that resource providers offer elastic resources to end users. In this paper, we intend to answer one key question to the success of cloud computing: in cloud, can small-to-medium scale scientific communities ...

Choosing China's eastern, central and western panel data between 2000-2005, by applying panel data model, from the supply and demand aspects which influence R&D, this paper analyzes the decisive influence of supply and demand factors of R&D input in the ...

The purpose of this study is to investigate the existence of economies of scale and other economic parameters influencing the rate of return of the domestic solid waste collection process. To this end, the case of the Attica region in Greece, which ...

We consider outsourcing in two important service settings: call center and order fulfillment operations. An important factor in both is the inherent economies of scale. Therefore, we advance a unifying model covering both applications and study the ...

Buy-at-bulk network design problems arise in settings where the costs for purchasing or installing equipment exhibit economies of scale. The objective is to build a network of cheapest cost to support a given multicommodity flow demand between node ...

Cloud computing, which is advocated as an economic platform for daily computing, has become a hot topic for both industrial and academic communities in the last couple of years. The basic idea behind cloud computing is that resource providers, which own ...

Based on panel data of China’s provincial electronic information manufacturing industry since 2002, this paper discussed the Marshallian externalities, relatives industries convergence externalities and Jacobs externalities, found that at the provincial ...

Based on panel data of China's provincial information industry since 2000, this paper discussed the Marshallian externalities, relatives industries convergence externalities and Jacobs externalities, found that at the provincial level, there are strong ...

In a hub network, the p-hub center single allocation problem is to allocate each non-hub node to one and only one hub from a given set of p hubs such that the maximum travel time (or distance) between any origin-destination pair is minimized. The problem ...

We consider a first-come first-served multiserver queue in the Quality-and Efficiency-Driven (QED) regime. In this regime, which was first formalized by Halfin and Whitt, the number of servers N is not small, servers' utilization is (Efficiency-...

Grid technology offers numerous opportunities for the players involved. Despite the fact that the academic community has already exploited many of them, there is an evident reluctance from the business community to act likewise. Recent analysis reveals ...