Buyer cooperatives, buyer alliances, and horizontal mergers are often perceived as attempts to increase buyer power. While prior theoretical and empirical work has emphasized that buyer size can increase buyer surplus, I show that even a small group of buyers with heterogeneous preferences can increase price competition among rival sellers by forming a buyer group and committing to buy exclusiv...

Configurational-bias Monte Carlo has been incorporated into the Wang-Landau method. Although the Wang-Landau algorithm enables the calculation of the complete density of states, its applicability to continuous molecular systems has been limited to simple models. With the inclusion of more advanced sampling techniques, such as configurational-bias, the Wang-Landau method can be used to simulate ...

A discussion of the Monte Carlo methods for the Ising model highlights the benefits of the Swendsen-Wang algorithm. Next, an a priori model that has been developed for the analytical reconstruction of crystal structures from xray crystallography data is discussed, and the feasibility of developing an algorithm for this model similar to the Swendsen-Wang algorithm is considered. Thesis Superviso...

We have studied the Swendsen-Wang and Wolff cluster update algorithms for the Ising model in 2, 3 and 4 dimensions. The data indicate simple relations between the specific heat and the Wolff autocorrelations, and between the magnetization and the Swendsen-Wang autocorrelations. This implies that the dynamic critical exponents are related to the static exponents of the Ising model. We also inves...

A discussion of the Monte Carlo methods for the Ising model highlights the benefits of the Swendsen-Wang algorithm. Next, an a priori model that has been developed for the analytical reconstruction of crystal structures from xray crystallography data is discussed, and the feasibility of developing an algorithm for this model similar to the Swendsen-Wang algorithm is considered. Thesis Superviso...

the aim of the current study was to design a model to investigate the effect of creativity and to share tacit and explicit knowledge on performance of sport and youth offices and sport boards in isfahan. it was a descriptive survey and a practical one. a combination of wang and wang (2012) knowledge sharing, kaplan & norton (1992) performance, zhou & george (2001), and coelho et al. (2011) crea...

The explosive growth of user data on the Internet has introduced significant security threats. In recent years, large data breaches and malicious content distribution (spam, malware) become prevalent. With the rapid adoption of mobile and wearable devices, user data now includes a wide range of personal mobile and physical data. It ranges from GPS location traces, to biometrics data, to user in...

No account of Hao Wang’s philosophy can be complete without discussion of his serious engagement with Wittgenstein. This began in the period 1953-1958, immediately following the publication of Philosophical Investigations [1953] and Remarks on the Foundations of Mathematics [1956], and culminated in a second phase of engagement from 1981 to 1995. It closed in the final chapter, “Alternative phi...

The prediction of leaf appearance rate (LAR) is an important part of many crop simulation models. Most wheat simulations models assume that LAR is affected by temperature and photoperiod. This assumption ignores the fact that seed reserves contribute to a greater LAR of the first two leaves and that the LAR of subsequent leaves decreases as a result of an increase in the distance that each leaf...