The coca leaf has many uses in the Peruvian culture. Although there are legal usages, people employ coca for illicit business. The most infamous illegal use is cocaine production. The cocaine business is highly profitable, but it harms human health. Then, what are the determinants of cocaine price? The current analysis aims to get the variables with the capability to explain the cocaine prices in Peru. The period analyzed is 2003-2019. The study gathered variables from DEVIDA and UNDOC databases. The Lasso technique selected the variables with the best capability to predict cocaine price. Those variables were: ENACO acquisition, coca seizures, and coca crops. OLS, VAR, and Granger analyses employed those variables to analyze the relationship between them. According to the OLS analysis, both ENACO acquisition and coca crops had adverse effects on cocaine prices, while coca seizures were positively related to the cocaine price. VAR analysis showed that only ENACO acquisition had a short-term relationship with the dependent variable. Moreover, it showed that the whole set of variables influenced the dependent variable. The Granger analysis proved that there was a cause-effect relationship between ENACO acquisition and cocaine price. Hence, the ENACO purchases expansion can rest the attractiveness of illegal groups to farmers. However, lowering cocaine prices might attract more users. Therefore, educational activities are also required.

The use of mobile payments has become a public interest during the current spread of the coronavirus. The use of mobile payments prevents society from touching the payment media. This study examines the effect of ease of use on e-WOM through the intention to use and social media community on the mobile payment method. This research was conducted by taking data through closed questionnaires designed with a five-point Likert scale. This study distributed two hundred fifty questionnaires, and 202 returned to be processed using the partial least square (PLS) technique. The results of data processing show that the ease of use of technology applications had a positive effect on the intention to use an e-WOM. Ease of use of technology has a positive effect on the social media community because of the ease of operation and understanding of the steps for using technology to access and join as members of the social media community. Intention to use in the operation of technology and relatively low cost does not directly affect e-WOM but must go through a community on social media that provides an exciting atmosphere. The social media community has a significant effect on e-WOM. The social media community can share information on social media and share reviews between members so that it creates a sense of trust and mutual concern among members. This study provides an insight into the mobile payment provider to consider the ease of use of their design. This research contributes to the ongoing research in the online payment application study in the pandemic era.

This study was designed to analyze the role of social media marketing in attracting investment capital from enterprises in the development of transport infrastructure in Vietnam. A survey of 378 Vietnamese companies operating in the sector of transport infrastructure investment was collected to compile these statistics. Based on the collected data, the factor analysis method and multivariate regression method are used to analyze the influence of factors on attracting development investment capital for transport infrastructure in Vietnam. The results of this study show that social media marketing had the greatest influence on firm satisfaction when investing in transport infrastructure; the Standardized Coefficient of the Social Media Marketing variable is 0.392. Based on that finding, some solutions to further enhance the value of social media marketing are recommended to increase the attraction of investment capital for the development of transport infrastructure in Vietnam.

Internet Shopping Optimization Problem (ISOP) is the application of optimization to online shopping activities of all complexity. The ISOP is useful for consumers in minimizing the cost of purchasing goods. This paper presents a bibliometric analysis of peer-reviewed papers based on ISOP topics by utilizing the R application program in the mapping. Overall, 101 papers (233 authors) in the Scopus database have used ISOP topics with research growth of 11.61% annually. The researcher presents a network of citations from productive authors, the impact of research, trends in terms that have been used, and shows a collaborative network of citations. Finally, the researcher presents the thematic analysis of the papers that apply the ISOP as a research topic and shows how the research forms clusters based on analytical solutions and numerical simulations that generate suggestions in finding the latest topics in the ISOP study. Another target for this paper is to produce review analysis results through Preferred Reporting Items for Systematic reviews and Meta Analyses (PRISMA). Through bibliometric and PRISMA analysis, it was found that the latest method in completing ISOP optimization is the ARC method. The ARC method in the ISOP is still little published among researchers in the world.

Today, the ever-changing technology development is bringing an impact to the Malaysian retail industry. Smart Retail Technology is one of the outcomes of Industry Revolution 4.0 to deepen integration between digital and physical characteristics that can serve extraordinary shopping experiences in brick-and-mortar stores. Smart retail technology is attaining greater attention in the information system literature. In this study, the researchers aimed to investigate the relationships between perceived usefulness (PU), perceived ease of use (PEOU), perceived enjoyment (PE), perceived risk (PR), attitudes (ATD) and behavioral intentions towards smart retail technology (BI). The 170 respondents were collected through an online survey and processed in the PLS-SEM data analysis. The results indicated that perceived ease of use is the main variable influencing people's acceptance of SRT, followed by perceived enjoyment. However, perceived usefulness and perceived risk performed insignificant roles to link with attitudes and behavioral intentions towards SRT. This study provided some insightful implications for both academicians and practitioners to understand the current situation of smart retail technology in developing countries, especially Malaysia.

Recently audio and video material has been used significantly in various online platforms. The audio-video materials enhance the teaching and learning process by facilitating the transformation of the data and providing a richer interactive environment, hence gaining wide intention within the educational realm. However, empirical studies have not examined the acceptance of the audio and video material depending on a conceptual model where acceptance is the key factor. The present study attempts to overcome this gap in the literature review by investigating the effects of media richness, speed and vividness, perceived concentration, perceived ease of use, perceived usefulness on the acceptance of audio-video material. What distinguishes the current study is the fact that content richness is considered as a mediator that affects all other factors in the conceptual model. The data is collected by distributing the online survey to college students. The results provide mostly insight and support for students’ intention to use audio-visual resources in a conceptual model. The technology characteristics of speed and vividness as well as TAM constructs were significant predictors of technology acceptance. However, it is concluded that the external factor of the perceived concentration has no impact on the students’ perception and intention to use audio-visual resources. In the recommendation, some theoretical and practical implications are stated along with the focus on technology designers, change managers, and users.

The purpose of this study was to determine the effect of ease of use, transaction success rate, and technological system capability on trust and to determine the effect of ease of use, transaction success rate, technology system capability and interest in transaction using mobile banking. This research was conducted at PT Bank NIAGA which is located in Denpasar. The data collection technique used a questionnaire to 160 PT Bank NIAGA customers who were selected as samples. Data were analyzed by Structural Equation Modeling (SEM) with AMOS program. Ease of use, transaction success rate, and technology system capability have a positive and significant influence on trust and interest in transacting using mobile banking. This means that the better the ease of use, the success rate of transactions, and the capability of the technology system, the higher the customer trust and interest in transactions using mobile banking.

The purpose of this study is to analyze the influence of social media marketing, product innovation, market orientation on marketing performance. The study uses quantitative methods and data analysis techniques are based on Structural Equation Modeling using SmartPLS 3.0 software. The sample selection method uses the snowball sampling method. Online questionnaires are sent to 320 SMEs in Banten Province, where 300 responses are used. The results of data analysis show that social media marketing has a significant effect on marketing performance, product innovation has a significant effect on marketing performance and market orientation has a significant effect on marketing performance.

This study proposes to explore the relationship between perceived risk, subjective norm, perceived value, and continuous usage intention via trust as a mediating variable. This research applied a survey which involved 320 IM users (160 from millennials and 160 from Zillennial) in Indonesia. The literature’s existing scales were used to operationalize the constructs proposed in this study. The analyses were conducted using partial least squares structural equation modeling (PLS-SEM) to test hypotheses. The results of the study show that there are differences in the results of the influence of perceived risk on continuous usage intention in the Millennial and Zillennial generations. The results of the study found that continuous usage intention received negative direct impact from perceived risk, positive direct effect from subjective norm, perceived value, and trust on Millennial. In addition, continuous usage intention received negative and not significant direct impact from perceived risk, positive direct effect from subjective norm, perceived value, and trust on Zillennial. The results are useful for instant messaging management into formulating strategies to retain their users in Indonesia. These findings provided theoretical and managerial contributions as well as future research directions.

Substantially, the theory of e-government public value (PV-EGOV) has been treated as a hot topic to be explored insightfully. This research comes to be considered as the launching point to empirically evaluate the creation of PV-EGOV in Jordan. The main aim of this research is to investigate the factors affecting the PV-EGOV in the context of Jordan. Information System Success Model (IS success model) was selected to determine the factors affecting the e-government public value in Jordan through the quality factors (system, information, and service) and their role in citizens' intention in use and satisfaction of the e-government. The structural Equation Model (SEM) approach was harnessed to obtain the results. The results indicated that the most critical determinant factor that affected the PV-EGOV was service quality. The current article has theoretical and practical implications for public institutions in Jordan. The future work trends are established in their specific section of this article.