Free to Paid: Purchase and Dropout Behavior of Mobile Application Users

Since mobile application market was open, developers have been seeking for strategies to maximize their profit. However, there is little research on user behavior of mobile applications for its short history. In this study, we conducted an exploratory study on mobile application users with actual usage data of Weather On. The result indicates positive relation between the premium conversion rate and the logarithm of the market wealth. It is observed that most of the users take only a short time to make a purchase or dropout decisions. Also, we suggest that push message can induce user responses in a positive or negative way

Genome-wide SNP identification and QTL mapping for black rot resistance in cabbage

BACKGROUND: Black rot is a destructive bacterial disease causing large yield and quality losses in Brassica oleracea. To detect quantitative trait loci (QTL) for black rot resistance, we performed whole-genome resequencing of two cabbage parental lines and genome-wide SNP identification using the recently published B. oleracea genome sequences as reference. RESULTS: Approximately 11.5 Gb of sequencing data was produced from each parental line. Reference genome-guided mapping and SNP calling revealed 674,521 SNPs between the two cabbage lines, with an average of one SNP per 662.5 bp. Among 167 dCAPS markers derived from candidate SNPs, 117 (70.1%) were validated as bona fide SNPs showing polymorphism between the parental lines. We then improved the resolution of a previous genetic map by adding 103 markers including 87 SNP-based dCAPS markers. The new map composed of 368 markers and covers 1467.3 cM with an average interval of 3.88 cM between adjacent markers. We evaluated black rot resistance in the mapping population in three independent inoculation tests using F₂:₃ progenies and identified one major QTL and three minor QTLs. CONCLUSION: We report successful utilization of whole-genome resequencing for large-scale SNP identification and development of molecular markers for genetic map construction. In addition, we identified novel QTLs for black rot resistance. The high-density genetic map will promote QTL analysis for other important agricultural traits and marker-assisted breeding of B. oleracea.This item is part of the UA Faculty Publications collection. For more information this item or other items in the UA Campus Repository, contact the University of Arizona Libraries at [email protected]

How does open innovation lead competitive advantage? A dynamic capability view perspective.

The relationship between open innovation and company's competitive advantage, and organisational capabilities required remains to be explained. This study was conducted to answer the following questions. Does open innovation create organisation's competitive advantage? What types of capabilities are needed in the process of open innovation reaching competitive advantage, and what kind of relationship do they have? This study extends the scope of theoretical discussion about open innovation from the point of dynamic capability view. The results confirmed the statistical significance of the path linking open innovation to competitive advantage through product innovation. From the viewpoint of capabilities, transforming capability plays a role of significant prerequisite of sensing capability and seizing capability, having a direct or indirect significant effect on product innovation performance and competitive advantage sequentially. The results suggest that the linkages between the needed capabilities of organisation must be considered for performing open innovation to secure competitive advantage

WHEN INTERACTIVE TV MEETS ONLINE AUCTION: A STUDY ON FACTORS AFFECTING USER ADOPTION (Completed academic paper)

users ’ attitude to adopt the interactive TV based auction service. The primary two factors, IQ and SQ, frequently have been found in a number of IS studies as significant factors affecting users ’ attitude toward innovative products or services. In this study, we adopted the two factors and trust as a mediated factor to explain how the factors affect users ’ attitude for the interactive TV based auction service, t-auction. In order to empirically verify our research model, we collected 1028 samples through online survey. By doing confirmatory factor analysis, we checked that the research model satisfied the convergent, discriminant validity and model fits. The results showed that all factors including IQ, SQ, and Trust have significant effects on users ’ attitude. Additionally, both IQ and SQ had greater direct influence on trust than their direct impact on attitude, and the direct effect of SQ on attitude was greater than the direct effect of IQ on attitude. We discussed the implications of this study in the last section of the paper

Does External Knowledge Sourcing Enhance Market Performance? Evidence from the Korean Manufacturing Industry.

Firms continuously search for external knowledge that can contribute to product innovation, which may ultimately increase market performance. The relationship between external knowledge sourcing and market performance is not well-documented. The extant literature primarily examines the causal relationship between external knowledge sources and product innovation performance or to identify factors which moderates the relationship between external knowledge sourcing and product innovation. Non-technological innovations, such as organization and marketing innovations, intervene in the process of external knowledge sourcing to product innovation to market performance but has not been extensively examined. This study addresses two research questions: does external knowledge sourcing lead to market performance and how does external knowledge sourcing interact with a firm's different innovation activities to enhance market performance. This study proposes a comprehensive model to capture the causal mechanism from external knowledge sourcing to market performance. The research model was tested using survey data from manufacturing firms in South Korea and the results demonstrate a strong statistical relationship in the path of external knowledge sourcing (EKS) to product innovation performance (PIP) to market performance (MP). Organizational innovation is an antecedent to EKS while marketing innovation is a consequence of EKS, which significantly influences PIP and MP. The results imply that any potential EKS effort should also consider organizational innovations which may ultimately enhance market performance. Theoretical and practical implications are discussed as well as concluding remarks

Discriminant validity (cross-loadings)

<p>Discriminant validity (cross-loadings)</p

Study variables and measurements

<p>Study variables and measurements</p