Suchergebnisse

Restaurant service quality assessment has generally focused on the dining service. However, restaurant service begins with waiting for the meal. When service failure occurs due to a long waiting time, restaurant managers should adopt appropriate service recovery measures to retain consumers and reduce loss. This approach would allow them to mitigate customer dissatisfaction and negative impressions. In this study, we explore the importance of pre-processing service in the context of possible restaurant service crises and construct a restaurant service recovery model for willingness to pay (WTP) through the contingent valuation method (CVM) to measure the effects before and after implementing service recovery. Overall, several psychological and tangible service recovery measures are provided to enhance people's willingness to extend their waiting time. Within our study group, relatively young participants showed a high willingness to extend their waiting time. Furthermore, the opportunity cost of high-income people in the waiting process was relatively high. Compared with psychological service recovery programs, our results show that tangible service recovery programs prompt respondents to wait for an additional ~10 min. This paper offers support for restaurant managers to manage consumer relationships.

Thin-film solar cells based on hybrid lead halide perovskites have achieved certified power conversion efficiencies exceeding 24%, approaching those of crystalline silicon. This motivates deeper studies of the mechanisms that determine their performance. Twin defect sites have been proposed as a source of traps in perovskites, yet their origin and influence on photovoltaic performance remain unclear. It is found that twin defects-observed herein via both transmission electron microscopy and X-ray diffraction-are correlated with the amount of antisolvent added to the perovskite and that twin defects in the highest-performing perovskite photovoltaics are suppressed. Heterogeneous supersaturation nucleation is discussed as a contributor to efficient perovskite-based optoelectronic devices. ; The authors thank the Ministry of Science and Technology of Taiwan for support of this research (MOST 106‐2917‐I‐564‐007 and MOST 107‐2221‐E‐007‐055‐MY3). This publication is based in part on work supported by the US Department of the Navy, Office of Naval Research (Grant Award No. N00014‐17‐1‐2524), the Ontario Research Fund – Research Excellence Program, and the Natural Sciences and Engineering Research Council (NSERC) of Canada. M.I.S. acknowledges the support of the Banting Postdoctoral Fellowship Program, administered by the Government of Canada.