Hạn chế và nghiên cứu trong tương laiWe note several limitations to our work that should be taken into account when generalizing the results. First, this study was conducted in Singapore, which has a strong reputation for rigorous enforcement of laws and regulations [37].10 Therefore, the subjects might be biased in their behavior with respect to the regulatory approaches to privacy protection. Hence, care must be taken when generalizing these findings to consumers in other social, economic, and cultural environments, and future research could replicate this study in other countries, especially those in Europe and North America. The privacy regulatory approaches adopted in the European Union and the United States represent the two major privacy regulatory models—the comprehensive legislative approach and the industry self-regulatory approach. Second, as is the case with recent research on privacy issues in LBS (e.g., [41, 63]), a scenario-based approach is considered appropriate at the initial adoption stage of LBS. Nevertheless, we believe that such an approach represents a simplification of the real pull- and push-based LBS context, which limits the generalizability of research results. A longitudinal field experiment in which participants can gain more realistic experiences of using LBS will certainly produce more reliable and meaningful results. The challenge is to design the manipulations for both pull and push mechanisms in a balanced and realistic manner. Particularly, it would be challenging to mimic user behaviors for the pull-based LBS in an experimental setting, because in pull-based LBS (e.g., “Where is the nearest Japanese restaurant offering discounts right now?”), a consumer’s decision to initiate contact with the service provider is volitional. Therefore, triggering consumers’ natural motives of initiating the use of pull-based LBS in an experimental setting remains a challenge.
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