Estimating switching costs involved in changing mobile phone carriers in Japan: Evaluation of lock-in factors related to Japan’s SIM card locks

This paper employs a web-based conjoint-type questionnaire to examine empirically user preference for a hypothetical Subscriber Identity Module (SIM) unlock situation in Japan’s mobile phone market. This paper also analyzes carriers’ other marketing strategies to lock in consumers. The empirical analysis in this study reveals the following: over 80% of survey respondents evaluate a highly compatible platform with the SIM unlocked. Approximately 70% of consumers find that the value of discounts on initial payments exceeds the discounts on one-year monthly payments. In addition, conditions set by continuing agreements for mobile carriers and mobile handsets reduce consumer benefit by 35% at the median in the case of SIM unlocking with compatible platforms.     

Wal‐Mart innovation and productivity: a viewpoint

Abstract Technology effects, business process development, and productivity growth are considered in the context of a single company: Wal‐Mart. The starting point is the 2001 McKinsey Global Institute report, which finds that over 1995–2000, a quarter of U.S. productivity growth is attributable to the retail industry, and almost a sixth of that is attributable to Wal‐Mart. Wal‐Mart is interesting as well because of its rapid growth in Canada. This is now Canada's largest private sector employer. We also consider other evidence relevant to public policy formation concerning Wal‐Mart and conclude with a discussion of options for partially filling important data gaps.     

Returns to scale: concept,estimation and analysis of Japan's turbulent 1964–88 economy

Abstract There is policy interest in factoring productivity growth into technical progress and returns to scale components. Our approach uses exact index number methods to reduce the parameters that must be estimated, and allows us to exploit the cross‐sectional dimension of plant‐level panel data. We show that the same equation can also be used to estimate ‘Harberger’ scale economies and technical progress indicators that require fewer assumptions. Estimates of the elasticity of scale for Japanese establishments in three major industries over 1964–88 are presented. Our study spans the high growth era of the 1960s, two oil shocks, and other exogenous shocks.     

Retaining telecommunication services when universal service is defined by functionality: Japanese consumers' willingness-to-pay

This study uses contingent valuation to measure Japanese customers' willingness-to-pay to maintain combinations of five telecommunication services that are considered substitutes if universal service is defined on the basis of functionality. The analysis revealed the following results. First, consumers are more willing to pay to retain voice communication services than data transmission services. Second, customers accept Internet Protocol telephony as a substitute for plain old telephone service (POTS) as a universal service, and they are willing to pay much more than Japan's current Universal Service Fund charge. Third, even when mobile phone service (MOB) is available, consumers will pay to retain fixed-line voice services. Finally, consumers have an equal desire to keep fiber-to-the-home (FTTH) and fixed-line voice services, but it is less than the demand for MOB. Thus, under the present definition of POTS as a universal service, FTTH could be considered as a basic telecommunication service.     

A credit market in early stages of economic development

Even if the relatively rich and the poor are initially caught in a poverty trap, the relatively rich can escape poverty by receiving payments from the poor. Further accumulation of wealth by the rich allows the poor to escape poverty.     

Adoption and policy implications of Japan’s new corporate governance practices after the reform

In this paper we explain the process and policy implications of Japanese firms’ adoption of recently reformed corporate governance practices. We use a selective adaptation framework in doing so. We present some qualitative predictions about the possible outcome of their adoption process. One advantage of our approach is that we can describe various aspects of the evolutionary process of Japan’s corporate governance reform as a system in a consistent manner, rather than as independent pieces. Our predictions provide policy implications and are empirically testable. Japan’s post-bubble corporate governance reform has been extensive and involves the enactment and revisions of many relevant laws and affected institutions. Japan’s aim has been to install US-like practices (the de facto global standard), with these practices replacing the now tarnished bank-centered practices, and to facilitate Japanese industry in regaining global competitiveness. However, we show that Japanese businesses’ adoption of US practices has been selective and efficiency and other policy implications of such behavior are potentially dysfunctional.     

Price dynamics, retail chains and inflation measurement

We use a large scanner price dataset to study grocery price dynamics. Previous analyses based on store scanner data emphasize differences in price dynamics across products. However, we also document large differences in price movements across different grocery store chains. A variance decomposition indicates that characteristics at the level of the chains (as opposed to individual stores) explain a large fraction of the total variation in price dynamics. Thus, retailer characteristics are found to be crucial determinants of heterogeneity in pricing dynamics, in addition to product characteristics. We empirically explore how the price dynamics we document affect price index measures.     

Price versus quantity in a duopoly with network externalities under active and passive expectations

This study examines the endogenous choice of strategic contracts in a duopoly composed of firms that produce goods with network externalities with some sort of compatibility. We adopt two types of expectations—active and passive—as consumers' expectations for each firm's equilibrium market share. In addition, we take into account the managerial case and entrepreneurial case with and without separation between ownership and management, as firms' internal structures. We derive the properties in the Cournot competition and the Bertrand competition as the equilibrium market structures under both passive and active expectations under imperfectly compatibility of networks.     

An Axiomatic Foundation of the Multiplicative Human Development Index

The aggregation formula in the Human Development Index (HDI) was changed to a geometric mean in 2010. In this paper, we search for a theoretical justification for employing this new HDI formula. First, we find a maximal class of index functions, what we call quasi‐geometric means, that satisfy symmetry for the characteristics, normalization, and separability. Second, we show that power means are the only quasi‐geometric means satisfying homogeneity. Finally, the new HDI is the only power mean satisfying minimal lower boundedness, which is a local complementability axiom proposed by Herrero et al. (2010).