A household vehicle transactions model has been developed as a competing risks duration model in this study. The model is developed assuming the following three types of competing risks: replacing one of the vehicles in the household fleet, disposing of one vehicle in the fleet, and acquiring one vehicle to add to the fleet. In addition to the attributes of household, changes in household attri...

We investigate the relationship between venture capital (VC) networks and investment performance in China. Distinct features of China’s VC networks are captured in our econometric model through the inclusion of an index of network stability and a dummy variable that indicates a VC firm’s connections with the Chinese state. Our econometric analysis shows that a VC firm’s position in its network,...

We consider Coalitional Skill Games (CSGs), a simple model of cooperation among agents. This is a restricted form of coalitional games, where each agent has a set of skills that are required to complete various tasks. Each task requires a set of skills in order to be completed, and a coalition can accomplish the task only if the coalition’s agents cover the set of required skills for the task. ...

This paper introduces a measure of uncertainty in the determination of the Shapley value, illustrates it with examples, and studies some of its properties. The introduced measure of uncertainty quantifies random variations in a player’s marginal contribution during the bargaining process. The measure is symmetric with respect to exchangeable substitutions in the players, equal to zero for dummy...

Introduction In conventional multi-shot IR-TFE sequences, e.g., clinical myocardial viability imaging, data collected during the first one or two shots is ignored, to minimize signal intensity variation across the shots. For a typical 8-10 heartbeat acquisition, such dummy shots results in scan overhead of 10-15% longer scan time. We evaluate the effect of removing the start-up shots in such IR...

Chinese animal product consumption behaviour was analysed for both urban and rural households using a complete regional consumption dataset that was augmented to include away-from-home consumption. Seven animal product expenditure share equations were estimated with an extended Almost Ideal Demand System model. The results suggest that Chinese consumers will continue to increase their consumpti...

This paper explores a framework to incorporate articulatory movement information into a classical ASR scheme based on the concept of articulatory stroke. Articulatory stroke is a geometrical segmental unit which corresponds to a target approaching-releasing articulatory gesture. It has been shown that critical and non-critical (i.e., secondary or dummy) articulatory gestures can be classified w...

A new heteroskedastic hedonic regression model is suggested. It takes into account time-varying volatility and is applied to a blue chips art market. Furthermore, a nonparametric local likelihood estimator is used. This estimator is more precise than the often used dummy variables method. The empirical analysis reveals that errors are considerably non-Gaussian, and that a student distribution w...

W-Beam guardrail system has been in use as a standard for roadside safety barrier since 1950s. Recently, its safety performance standard has been upgraded to absorb impact from large vehicles. This performance standard requires guardrail system to be capable of capturing and redirecting a large range of vehicle types and sizes but its effects on safety of motorcyclists are not yet understood. T...

This paper addresses the board flooding problem of Juels et al.’s coercion-resistant electronic voting scheme. A key property of this scheme is the possibility of casting invalid votes to the public board, which are indistinguishable from proper votes. Exactly this possibility is crucial for making the scheme coercion-resistant, but it also opens doors for flooding the board with an enormous am...