The effect of social distancing on the reach of an epidemic in social networks

How does social distancing affect the reach of an epidemic in social networks? We present Monte Carlo simulation results of a susceptible–infected–removed with social distancing model. The key feature of the model is that individuals are limited in the number of acquaintances that they can interact with, thereby constraining disease transmission to an infectious subnetwork of the original social network. While increased social distancing typically reduces the spread of an infectious disease, the magnitude varies greatly depending on the topology of the network, indicating the need for policies that are network dependent. Our results also reveal the importance of coordinating policies at the ‘global’ level. In particular, the public health benefits from social distancing to a group (e.g. a country) may be completely undone if that group maintains connections with outside groups that are not following suit.

     

The Substitution Effect of Mobile Games on Console Games: An Empirical Analysis of the Japanese Video Game Industry

In this paper, we discuss the substitution effects between mobile games and console games. We estimate such effects by a fixed-effect regression with instrumental variables using panel data of about 100,000 observations. The results showed that the substitution effects of playing smart devices on 3DS, Wii, and PSP were recognizable, but did not have significant effects on PS3, and the substitution effects on PSP were very small. Therefore, mobile games had a substitution effect on casual console games, or on console games in which the play situation resembled mobile games. In addition, the substitution effects were at most about 0.1. The substitution effects were small. Our results indicate that mobile games represent the pioneers in the new market of gaming at least during our observation period. But new games and traditional games will coexist for a while.     

Inclusive wealth with a changing but aging population

We consider the effect of population age distribution in inclusive wealth accounting. Numerical results demonstrate that the wealth of nations with an aging demographic structure, as well as those with a rapidly increasing working-age generation, may have been overestimated.     

Assessing the Effects of Service Quality,Past Experience,and Destination Image on Behavioral Intentions in the Spring Training Camp of a Japanese Professional Baseball Team

This study aimed to examine the theoretical relationships between service quality, past experience, destination image, and behavioral intentions in the spring training camp of a professional baseball team in Japan. The results indicate that the service quality of spring training camps was divided into five factors: (1) place, (2) enjoyment, (3) information, (4) fan interaction, and (5) operating time. The findings suggest that service quality and past experience had positive effects on both destination image and behavioral intentions. Behavioral intentions were also highly influenced by destination image. Future research and managerial implications are also discussed.     

CROSS‐BORDER INTEGRATION IN NORTHEAST ASIAN AIR TRANSPORT MARKET

This study highlights the recent global trends of the air transport market and develops a simulation model to assess the welfare impacts of tripartite liberalization in the Northeast Asian air transport market. First, in the global air transport market, routes between 1000 and 2000 km are identified as the fastest growing segment. Gravity model analysis reveals that there is potentially significant room for further growth from cross‐border liberalization. Second, in the impact assessment of market liberalization in Northeast Asia, the effect of tripartite market liberalization of triangular routes that connect major cities in each of the three nations, Japan, South Korea and Mainland China, is analyzed. Simulation using a Cournot model with product differentiation shows that overall welfare gains would be achieved from tripartite liberalization. Air carriers' losses are overridden by an increase in consumer surplus. Such an arrangement by the three nations might eventually lead to an integrated environment in which airlines could evolve into a true multi‐hub Northeast Asian air carriers.     

Fundamentals of a new economic paradigm in the information age

Mechatronic technology is becoming dominant, and the capitalist market economy is becoming replaced by an economic framework of self-management and information sharing. As services and information become major traded goods at the global level, new economic structures based on globally networking eco-share regions are emerging. This article posits the development of a ‘MuRatopian’ economy—the new social design of the information age. Five actors-prosumer, co-worker, self-financer, inhabitant and villager—are replacing the nation-state in eco-share regions, with full employment, fair income distribution, economic efficiency and incentive, freedom and participatory democracy, all facets of a superior global economy of the information age.     

Some cumulative logit models for panel-data analysis: an application to a dynamic analysis of personal efficacy

This paper introduces novel cumulative logit models for the panel-data analysis of transitions among ordered states of a polytomous dependent variable. The models differ from conventional cumulative logit models in that they can distinguish between covariate effects on the odds of having an upward transition and covariate effects on the odds of having a downward transition in the ordered states of the dependent variable. The new models are applied to panel data on personal efficacy and are used to identify asymmetric patterns in the effects of divorce and unemployment on changes in the level of personal efficacy. The effects of the two events on increasing the odds of having a downward transition are shown to be greater than their effects on decreasing the odds of having an upward transition. Some distinct characteristics of the effects of each event are also reported.     

The geographic extent of global supply chains: evidence from Southeast Asia

We study the extent to which inter‐firm relationships are locally concentrated and what determines firm differences in geographic proximity to domestic or foreign suppliers and customers. From micro‐data on self‐reported customer and supplier data of firms in Indonesia, the Philippines, Thailand, and Vietnam, we measure the distances between firm pairs, that is, the distance to the main supplier and the distance to the main customer for the surveyed firms. The distances to suppliers and customers are shorter for indigenous firms in these Southeast Asian countries; but the arm's length differs across countries. The distance between firm pairs differs widely across firms within narrowly defined industries and countries. We find that both firm‐level transaction costs and capabilities affect the distances between customers and suppliers. The distance to suppliers is longer for firms that have accepted guest engineers from the main supplier to maintain production processes. Further, we find that the distances to suppliers and customers are longer for firms that have undertaken organisational change or improved marketing practices.     

A cross‐country study on the relationship between financial development and earnings management

This study investigates whether a country's level of financial development is associated with earnings management in an international setting. Financial development is likely to heighten the monitoring and scrutiny of accounting numbers because of strengthened investor protection laws and regulations as well as sophisticated market participants. Therefore, we first hypothesize that both accrual‐based and real earnings management decrease with greater financial development. However, research shows that managers tend to apply real earnings management, instead of accrual‐based earnings management, under strict accounting standards, regulations, and close auditor scrutiny. Thus, we explore the alternative hypothesis that accrual‐based earnings management decreases but real earnings management increases along with higher financial development. We examine the relationship between financial development and both types of earnings management using 56,830 observations in 37 countries covering the period 2009–2012. The results indicate that both types of earnings management are more restrained under higher levels of financial development.