queueing system, health care, public policy, nursing, staffing, many-server limit theorems
The immediate motivation of this paper is California Bill AB 394, legislation which mandates fixed nurse-to-patient staffing ratios as a means to address the current crisis in the quality of health care delivery. Modeling medical units as closed queueing systems, we seek to determine whether or not ratio policies are effective at managing nurse workload. Our many-server asymptotic results suggest that ratio policies cannot provide consistently high service quality across medical units of different sizes. As a remedy, we recommend policies that deviate from the restrictive linear nature of ratio policies, employing the 'square root rule' commonly used to staff large service systems. Under some quality of care assumptions, our policies exhibit a type of 'super' pooling effect, in which, for large systems, the requisite workforce is significantly smaller than the nominal patient load.
Human resources management/organizational behavior
Keyword(s)
leadership, leadership development, management development and education, Russia
Quicker, Higher, Stronger:
A couple of years ago, the Russian branch of a global professional services firm published its annual partner promotion announcement in a leading Russian business journal, giving the names and pictures of the newly appointed partners. To the readers' surprise, most of these partners looked like a fresh-faced class of new university graduates. In some countries people of this age have not even graduated yet: the youngest partner was 26 years old. Just four years previously he had joined a competing professional organization as an intern, combining his last academic year's study with on-the-job training. With the growth of market opportunities and lack of more senior staff, he was quickly put on assignments with increasing complexity and responsibility and then made responsible for developing new business and delivering it successfully. A combination of personal qualities, learning opportunities and luck (or perhaps because the employer had no other choice) eventually led to his becoming a partner very early in life...
With permission of Elsevier
Volume
37
Journal Pages
277–287
Journal Article
Russia: A work in progress transcending the fifth 'time of troubles'
Russian firebird:
After a decade of a spectacular retreat, Russia is re-emerging as an active player on the world scene, and for the first time in its modern history is becoming a serious factor in the global economy. With its $1000 billion economy set to grow at 5-7% over the next two decades, 27% of world gas and 6% of world oil reserves, the largest territory in the world and the largest population in Europe, the country is once again attracting the attention of the West and the rest of the world. While politicians and intellectuals warn of Russia's increasing assertiveness and criticize its government for suppressing democracy, business people vote with their dollars and Euros-in 2007, Russia received a record $87 billion in foreign investments, more than double the amount of the previous year. It is a market no serious global company can ignore. Domestic consumption has been growing at double-digit numbers for the last 3 years, real estate prices in Moscow have reached London levels, and in 2007 Russians bought more cars than any other European nation except Germany. Disposable income for a large segment of the population has been increasing steadily, allowing the purchase of luxury goods and foreign travel-28 million Russians traveled abroad in 2007. The foundation has been set for a property-owning middle class. Thanks to its oil-fueled economy, Moscow can now count itself as the city with the largest number of billionaires in the world. In its turn, Russian business has started to expand internationally, with deals such as Evraz Group S.A.'s purchase of Oregon Steel Mills for $2.3 billion and Gazprom's acquisition of the Serbian gas monopoly. In short, in 2007, Russia invested $54 billion outside its borders...
In all the literature on the theory and practice of negotiation, the governing metaphor remains consistently one of war or fighting. This is true not only for tactical schools of power-based negotiation, but even for more constructive, interest-based approaches. Our language is infused with talk of tactics, flanks, concessions, gaining ground and winning. This article explores the possible consequences of abandoning this picture in favor of the far too little explored metaphor of the dance. We will see that both the content and the process of negotiation can change dramatically once when we think of bargaining as an aesthetic activity which provides intrinsic joy as well as extrinsic benefits. In such a dance, there is plenty of room for competition as well as cooperation, as movements can be spirited and confrontational as well as smooth and harmonious. We identify many forms of dance in negotiation, and explore three: the dance of positioning, where passions and presentations interact proudly; the dance of empathy, when the partners come to better understand each other; and then the dance of concessions, where the deal is struck and the music comes to an end. Finally, we will try to show how the dance can be employed pedagogically, in teaching and training negotiation and mediation. In particular, the Brazilian dance of capoeira illustrates holistically and experientially how movement and rhythm can be interpreted both as fight and as a dance and how we can come to see a process as both aesthetic and purposeful at the same time. First feeling, then thinking and finally speaking, we can use this medium to explore the dynamics of confrontation and cooperation in a negotiation setting.
How do firms cope with the challenges of disruptive change in their industry? Numerous studies have highlighted that success with any prior technology creates a negative legacy effect for the next radical technological shift. We question the overly pessimistic view of such legacy effects and ask how quickly firms embrace echnological breakthroughs by radically innovating and who wins in the longer term? In this paper, we argue that legacy is a multi-faceted construct whose diverse aspects could simultaneously have different effects on innovation speed and market performance. We identify three main types of legacy related to echnology, organizational, and country-level influences. Previous research tends to focus on technological or market effects in isolation, whereas we seek to study the effects of both firm and country legacy simultaneously on speed to radical innovation and market performance over time. Based on a conceptual framework we develop six hypotheses concerning the legacy effects on initial speed radical innovation and subsequent market performance. We chose the European retail banking industry and the focal innovation of transactional Internet banking as a suitable empirical context to employ quantitative hypothesis testing. Detailed and longitudinal (1996-2001) data were collected for a sample of 123 banks from six European countries: United Kingdom, Germany, France, Sweden, Finland, and Denmark. We specified a model and used threestage least squares (3SLS) as a method to estimate simultaneous regression equations due to endogeneity of a key variable. We show that the prevailing negative view of legacies is likely to be overstated.
facilities/equipment planning capacity expansion, games noncooperative, inventory/production multi-item, queues priority
We consider a market with two suppliers and a set of buyers in search of procurement contracts with one of the suppliers. In particular, each buyer needs to process a certain volume of work, and each supplier's ability to process the customers' requests is constrained by a production capacity. The procurement contracts include guarantees that the products will be available when needed, and the buyers select a supplier based on their service delivery offers. The suppliers are modeled as make-to-stock queues and compete for the buyers' business. The main objective of this paper is to determine how the procurement contracts are established between buyers and suppliers. Because each buyer selects a single supplier to establish the sourcing relationship, the game fails to have a pure-strategy Nash equilibrium. Instead, an equilibrium is defined as the limit equilibrium of some discrete action games.