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1.
Household Determinants of the Adoption of Improved Cassava Varieties using DNA Fingerprinting to Identify Varieties in Farmer Fields: A Case Study in Colombia 下载免费PDF全文
Victorino O. Floro IV Ricardo A. Labarta Luis A. Becerra López‐Lavalle Jose M. Martinez Tatiana M. Ovalle 《Journal of Agricultural Economics》2018,69(2):518-536
We examine factors affecting the adoption of improved cassava varieties of 217 households in the Cauca Department in southwest Colombia. Using DNA fingerprinting through Single Nucleotide Polymorphisms (SNPs), we identified different cultivars in farmers fields. We also used this information to remove possible bias in the adoption model that could have resulted from a misclassification of improved varieties (IVs). As a result, we found that farmers substantially overestimate their use of IVs and there are important differences in the determinants of adoption between farmer self‐identification and DNA fingerprinting. This finding implies that the incorporation of DNA fingerprinting in IV adoption studies is important to ensure the accuracy of future agricultural economic research and the relevance of subsequent policy recommendations. 相似文献
2.
Marketers are beginning to expand the roles that celebrities play in support of brands. Connections now go beyond the typical endorsement relationship to employing celebrities as Creative Directors. Study 1 demonstrates celebrity Creative Directors, as opposed to merely endorsers, result in increased attitudes toward the advertisement; an effect mediated by consumer perceptions of celebrity expertize and attenuated by skepticism toward advertising. Study 2 further investigates this phenomenon by considering whether it is the title of Creative Director that results in increased attitudes toward the advertisement or if consumers need to be made aware of the responsibilities associated with such a role. Results from Study 2 suggest that merely bestowing a celebrity with the title of Creative Director is not sufficient to enhance attitudes, the duties performed by the celebrity Creative Director must be made explicit. 相似文献
3.
Social Impact Bonds (SIBs) have emerged in recent years as outcome‐based public‐private partnerships (PPP) for the delivery of welfare services, where the payment to the private operator is linked to the achievement of superior social impact. Since the traditional infrastructure‐based PPP approach seems to have failed to achieve higher level of efficiency and, above all, effectiveness, this paper discusses the extent to which the SIB model can represent a reference point to innovate the PPP model by introducing more focus on outcome achievement and social value generation. 相似文献
4.
Manlio Del Giudice Veronica Scuotto Armando Papa Shlomo Y. Tarba Stefano Bresciani Merrill Warkentin 《Journal of Product Innovation Management》2021,38(1):68-89
With the changing way people live, communicate, and work, enterprises are striving to shift their existing business model into a “self‐tuning” one. Enterprises are becoming more agile, adaptive, and ambidextrous in order to boost innovation in the current digital transformation era. Nowadays, “digital innovation” is closely associated with Industry 4.0 enablers and smart enterprises. Prior research has shown that while multinational enterprises—across many sectors—have already embraced the aforementioned advancements, their adoption by small and‐medium‐sized enterprises (SMEs) has so far taken place mainly in the manufacturing sector. Thus, based on a sample of 280 self‐tuned smart manufacturing SMEs and having utilized the structural equation modeling (SEM), this study was aimed to investigate how digital innovation is influenced by the three pillars of self‐tuning models—agility, adaptation, and ambidexterity. Our paper has focussed on the digital systems in which SMEs, spurred by networking and open innovation solutions, operate and innovate in response to external triggers, displaying a balance between exploration and exploitation, and a strong agile capacity. 相似文献
5.
Karin Sanders Julie A. Cogin Cai-Hui Veronica Lin 《Frontiers of Business Research in China》2017,11(1):11
A twenty-year study of the Human Resource (HR) practices–outcome relationship has found that more rigorous methodologies have been adopted over time. However, several problematic features such as cross-sectional, single-informant, and single-level designs continue to be adopted (Bainbridge et al., Human Resource Management, 2016). Responding to calls for increased contextualization of research by investigating the relationship between the location of data collection and the methodological choices of researchers, this study answers the question “How unique are the methodological choices of HR research conducted in Asia?” Applying content analysis to 241 published articles, we compare internal, external, construct and statistical conclusion validity of studies collected in North America (n=66), Europe (n=95) and Asia (n=80, including 57 studies from China). Results show that despite similarities in cross-sectional, single-informant and single-level designs across regions, research conducted in Asia is mainly undertaken via field studies, using subjective outcome measures at the organizational level, following a post-predictive design. In addition, studies from Asia are more recent, and show a shorter time gap between data collection and publication. Theoretical and practical implications embedded in the dynamic context of Asia in general, and China more specifically are discussed. 相似文献
6.
Marketers continually employ celebrity endorsers as a promotional tactic to enhance brand awareness and increase sales. Frequently, companies will use multiple celebrities to endorse the same product, but feature them individually across a series of concurrent advertisements. While this tactic is often used in practice, its effectiveness has not been thoroughly examined within the academic literature. Our research investigates the value of using multiple concurrent endorsers and the moderating role that celebrity familiarity has on attitudes toward the brand and purchase intentions. Results suggest that using multiple endorsers concurrently is not always the best approach. 相似文献
7.
Multinational enterprises are, sina qua non, the world's technology producers. In this paper, we explore the concept of technology production by multinationals, focusing on three aspects: (i) technology as a firm-specific advantage, (ii) the costs of technology transfer, and (iii) technology spillovers. In each case, we outline current views and debates in the field about the role played by large multinationals in technology production. Finally, we compare MNEs with small and medium sized enterprises (SMEs) as technology producers. We conclude that SMEs face certain constraints, due to small size and inadequate financing, that raise their costs of technology production and transfer, relative to the costs for MNEs. On the other hand, their flexibility and use of unconventional methods can create successful mini-nationals in niche markets. 相似文献
8.
9.
Heather M. Rozjabek Craig I. Coleman Veronica Ashton François Laliberté Paul Oyefesobi Dominique Lejeune 《Journal of medical economics》2019,22(8):751-759
Objective: To assess long-term healthcare costs related to ischemic stroke and systemic embolism (stroke/SE) and major bleeding (MB) events in patients with non-valvular atrial fibrillation (NVAF) treated with non-vitamin K antagonist oral anticoagulants (NOACs).Materials and methods: Optum’s Clinformatics Data Mart database from 1/2009–12/2016 was analyzed. Adult patients with ≥1 stroke/SE hospitalization (index date) were matched 1:1 to patients without stroke/SE (random index date), based on propensity scores. Patients with an MB event were matched to patients without MB. All patients had an NOAC dispensing overlapping index date, ≥12?months of eligibility pre-index date, and ≥1 NVAF diagnosis. The observation period spanned from the index date until the earliest date of death, switch to warfarin, end of insurance coverage, or end of data availability. Mean costs were evaluated: (1) per-patient-per-year (PPPY) and (2) at 1, 2, 3, and 4?years using Lin's method.Results: The cost differences were, respectively, $48,807 and $28,298 PPPY for NOAC users with stroke/SE (n?=?1,340) and those with MB (n?=?3,774) events compared to controls. Cost differences of patients with vs without stroke/SE were $49,876, $51,627, $57,822, and $60,691 at 1, 2, 3, and 4?years post-index, respectively (p?0.001). These cost differences were $31,292, $35,658, $44,069, and $47,022 for patients with vs without MB after 1, 2, 3, and 4?years post-index, respectively (p?0.001).Limitations: Limitations include unobserved confounders, coding and/or billing inaccuracies, limited sample sizes over longer follow-up, and the under-reporting of mortality for deaths occurring after 2011.Conclusions: The incremental healthcare costs incurred by patients with vs without stroke/SE was nearly twice as high as those of patients with vs without MB. Moreover, each additional year up to 4?years after the first event was associated with an incremental cost for patients with a stroke/SE or MB event compared to those without an event. 相似文献
10.
This study proposes brand communities as an effective tool within the integrated marketing communication (IMC) system. The paper utilizes the Brand Concept Map quali-quantitative technique in order to represent and compare mental association texture within one group of non-members of a brand community versus one group of people engaged in the same community. Brand stimulus is Nutella (chocolate cream) which boasts a crowded and lively online brand community: Nutellaville. Results show that brand community is effective in terms of contribution, commonality, and complementarity within the IMC system. In particular, Nutella brand image within the online community participants is composed of some mental associations overlapping other communication tools (commonality), and by new mental associations (complementarity) referred to the brand image dimension named ‘brand as person’ (seductive, popular, reassuring); second, this anthropomorphism effect solves the issue of sense of guilt excited by chocolate (contribution). 相似文献