Identifying the precise locus of general cognitive ability (g) in the flow of information between perception and action is an important goal of differential psychology. To localize the negative correlation between g and reaction time to a specific processing stage, we administered a speeded number-comparison task to two groups differing in average g. The participants had to respond to two stimu...

Automobile warranties and thus lifetimes are characterized in the two-dimensional space of time and mileage. This paper presents a non-homogenous Poisson Process (NHPP) predictive model for automobile warranty claims consisting of two components: a population size function and a failure or warranty claim rate. The population size function tracks the population in the time domain and accounts fo...

Appliance energy labels are gaining global recognition as policymakers increasingly prioritize measures to enhance efficiency and reduce carbon emissions. They serve effective tools in encouraging consumers choose appliances that more energy-efficient. This study investigated consumer preferences their willingness pay (WTP) for on rice cooker specifically. The data was surveyed through a choice...

The long-term sustainability of our resources is dependent on reducing the consumption of virgin resources, and one method of achieving this goal is product remanufacturing. It is already established that the production of remanufactured products costs less than that of creating a new one, however the effects of this on warranty costs are now considered. Due to consumer perceptions of the quali...

We formulate a structural econometric model to analyze the impact of service attributes (warranty length, after-sales service quality) on consumer demand in the U.S.automobile industry. Our results indicate that service attributes play a compensatory role with respect to product quality, i.e., the impact of warranty length and service quality on demand increases when product quality decreases. ...

We construct quasiconformal mappings in Euclidean spaces by integration of a discontinuous kernel against doubling measures with suitable decay. The differentials of mappings that arise in this way satisfy an isotropic form of the doubling condition. We prove that this isotropic doubling condition is satisfied by the distance functions of certain fractal sets. Finally, we construct an isotropic...