Collaborative consumption, often associated with the sharing economy, is an emerging consumption pattern that emphasizes sharing the right to use the same units of goods or services rather than owning them. This study proposed a more comprehensive definition of collaborative consumption and five distinctive characteristics of collaborative consumption, and based on that, it explored the internal mechanism of motivation about participation in collaborative consumption of users by applying self-determination theory. The empirical research was conducted using bicycle sharing users’ survey data to test the research model. Data were analyzed by structural equation model approach using partial least squares path modeling and multi-level regression model approach. The results reveal that, for extrinsic motivations, perceived economic benefit and convenience had significant positive effect on perceived usefulness, and perceived usefulness as a mediator significantly affected the user’s intention to participate. For intrinsic motivations, sustainability, sense of belonging and trust had significant positive effect on enjoyment, and enjoyment as a mediator significantly affected the intention to participate. The findings suggest the important role of perceived usefulness and enjoyment in self-determination theory. This paper offers recommendations for stakeholders based on model results to promote sustainable development of collaborative consumption.

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Tuberculosis (TB) is one of the major infectious diseases with the largest number of morbidity and mortality. Based on the comparison of high and low burden countries of tuberculosis in China, India and the United States, the influence of age-period-cohort on the incidence of tuberculosis in three countries from 1992 to 2017 was studied based on the Global burden of Disease Study 2017. We studied the trends using Joinpoint regression in the age-standardized incidence rate (ASIR). The regression model showed a significant decreasing behavior in China, India and the United States between 1992 and 2017. Here, we analyzed the tuberculosis incidence trends in China, India, as well as the United States and distinguished age, period and cohort effects by using age-period-cohort (APC) model. We found that the relative risks (RRs) of tuberculosis in China and India have similar trends, but the United States was found different. The period effect showed that the incidence of the three countries as a whole declines with time. The incidence of tuberculosis had increased in most age group. The older the age, the higher the risk of TB incidence. The net age effect in China and India showed a negative trend, while the cohort effect decreased from the earlier birth cohort to the recent birth cohort. Aging may lead to a continuous increase in the incidence of tuberculosis. It is related to the aging of the population and the relative decline of the immune function in the elderly. This should be timely population intervention or vaccine measures, especially for the elderly. The net cohort effect in the United States showed an unfavorable trend, mainly due to rising smoking rates and the emergence of an economic crisis. Reducing tobacco consumption can effectively reduce the incidence.