A robust asymptotically optimal sequential estimation procedure for the Poisson process

The problem of estimating sequentially the intensity parameter of a homogeneous Poisson process with quadratic loss and fixed cost per unit time is considered within the Bayesian framework. Without using both the prior information and any auxiliary data, this paper proposes a sequential procedure as that suggested by Vardi (Ann Statist 7:1040?C1051, 1979) in classical non-Bayesian sequential estimation. The proposed sequential procedure is robust in the sense that it does not depend on the prior. The second order approximations to the expected sample size and the Bayes risk of the proposed sequential procedure are established for a large class of prior distributions.     

The voluntary organizations and democracy in Korea: A civil society perspective

After achieving the dramatic progress of democracy recently, the preconditions of democracy in Korea are a major concern for scholars at home and abroad; These days, therefore, finding factors for successful democracy might be an important agenda for Korea as much as for all less‐developed countries. Among many factors conducive to democracy, this study emphasizes the important role played by voluntary associations as mediating and countervailing mechanisms to both the central government and markets. Even though there have been many factors at work in shaping political democracy, Korean experience during last three decades calls attention to the importance of the transition of the resurrection of civil society through an explosion of autonomous interest group expression and activity. The Korean experience supports that the organization of the citizenry is an indispensable condition for the development and maintenance of democracy.     

Food tourists’ connectivity through the 5A journey and advocacy: comparison between generations Y and X

ABSTRACT

By adopting the new 5A model of Marketing 4.0, which conceptualizes a consumer-driven paradigm shift in digital marketing, this study empirically investigated food tourists’ connectivity throughout the 5A process (aware, appeal, ask, act, and advocate). Furthermore, we compared the 5A journeys of Generation Y and Generation X. Along the 5A path, both generations indicated the strongest social connectivity in the ask stage. Generation Y showed stronger social connectivity than Generation X, while there was no significant difference in channel connectivity. The social connectivity in the advocate stage was most strongly correlated with that in the act stage. Within each generation, active netizens were more strongly engaged in sharing and positive/negative advocacy. Based on these findings, we discuss the theoretical and practical implications.     

Conceptualizing inter‐regional partnership for tourism promotion: In case of the East Asia inter‐regional tourism forum (EATOF)

Tourism in East Asia is in transition. One of the most striking movements in international tourism arena in East Asia is the emergence of local initiative toward building a joint network of destination marketing. The East Asia Inter‐Regional Tourism Forum (EATOF) which has been embarked in September 2000 is a concrete example of this sort. Even though a regional association is a newly rising trend in tourism, conceptualizing a model of inter‐regional tourism cooperation has been scarcely attempted. The current paper is devoted to fill the academic lacuna by suggesting a systematic framework of inter‐regional association of tourism promotion. Then the case of the EATOF was critically analyzed and evaluated under the framework of the proposed type of networking. It is argued in this paper that the inter‐regional tourism cooperation is neither irrelevant with the regional situation, nor inconsistent with the theoretical logic.     

Optimal Trade Policy under Homogeneous Bertrand Competition*

In a seminal paper, Eaton and Grossman (1986) conclude that an export tax is optimal if firms produce heterogeneous products and engage in Bertrand price competition. In particular, they made a comment that could be interpreted to mean that even in the case of a homogeneous product, the optimal policy is still an export tax. This paper has re‐examined the case and found that the optimal export policy can be an export subsidy, free trade, or an export tax, depending on the marginal cost differential between the domestic and the foreign firms. Moreover, if government intervention entails a cost, free trade becomes the only optimal policy.     

Mapping alternatives: A commentary on Cova,B. et al. (2010). ‘Navigating between dyads and networks’

In this paper, we explore the mapping metaphor in its various guises within B2B marketing and, particularly, IMP research. We explore these multiple mapping techniques in terms of different mapping styles that point to different types of research journey, different sights along the way and different destinations. We critically appraise ‘dead mapping’ approaches, which we see as a persistent cause of getting lost and advocate ‘second order’ mapping as a more suitable alternative. We focus our critique upon Cova, Prévot, and Spencer (2010)'s paper ‘Navigating between dyads and networks’.     

The disappearance of momentum

We investigate the dynamics of the momentum premium in the USA. The momentum premium is significantly positive only during certain periods, notably from the 1940s to the mid-1960s and from the mid-1970s to the late 1990s, and it has disappeared since the late 1990s. Our results further suggest that momentum profits have slowly disappeared since the early 1990s, in a process which was delayed by the occurrence of the high-tech and telecom stock bubble of the late 1990s. In particular, we estimate that the bubble accounted for at least 50% of momentum profits during the period from 1994 to 2000.     

Socio-economic impact of the mHealth adoption in managing diabetes

The increasing prevalence of prediabetes and diabetes has become a serious problem in Korea. This study aims to compare the effects of various policy options for mHealth proliferation for managing and preventing diabetes. To this end, we simulate the plausible possibility of mHealth using system dynamics modelling. There are several important findings of this study that are helpful to policy makers’ decisions. First, innovative healthcare delivery through mHealth has a positive influence on health to significantly reduce prediabetes and diabetes. Moreover, the gap between the healthcare system with and without mHealth increases over time. Second, the effectiveness of mHealth adoption depends on the timing of implementation of institutional reforms. Finally, mHealth adoption can stimulate national economic growth as the demand for a new healthcare system rises.