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学术科研
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Mind the voice! The effect of service robot voice vividness on service failure tolerance
Voice of service robot has significant impact on human-robot interaction,but with inadequate academic attention to it in robot service failure context. This research focuses on a novel perceptual nonlinguistic tone of robot voice, vividness, and investigates its influence on consumer tolerance to robot service failure. In three experiments, it was found that voice vividness negatively influences consumer tolerance to service failure, with service expectation playing a mediating role. Furthermore, the study revealed that robot appearance cuteness can mitigate the detrimental impact of voice vividness, but this mitigating effect is only effective in scenarios with low service failure severity.
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Unified specification tests in partially linear quantile regression models
We propose specification tests for parametric quantile regression models versus semiparametric alternatives over a continuum of quantile levels. The test statistics are constructed as continuous functionals of a quantile-marked residual process. We show that using an orthogonal projection on the tangent space of nuisance parameters at each quantile index delivers unified asymptotic properties for tests based on different estimators. Consistency of the tests and asymptotic power under a sequence of local alternatives converging to the null at a parametric rate are also discussed. We propose a simple multiplier bootstrap procedure to carry out the tests, whose nominal levels are well approximated in our simulation study for modest sample sizes.
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Structural changes in China's flow of funds (1992-2022): A Who-to-Whom model
We aimed to compile the flow of funds and stock matrix based on the Who-to-Whom (W-t-W) model. Our objective was to analyze structural changes in China's flow of funds and macroeconomic regulation. To strengthen macroeconomic monitoring, we examined the characteristics of fund sources and uses across sectors from a sectoral perspective of the flow of funds. Utilizing data on fund flows and stocks, we constructed the Chinese flow-of-funds matrix and financial asset-liability matrix for the period 1998-2022. Furthermore, time series methods were introduced to track the flow of funds and conduct influence and sensitivity analysis of assets and liabilities. We also performed a multiplier analysis of the fluctuations in the flow of funds and discuss the position and role of the Financial Corporation and Government sector in the financial market.