Musashi University

About: Musashi University is a education organization based out in Tokyo, Japan. It is known for research contribution in the topics: Supply chain & Frugivore. The organization has 125 authors who have published 328 publications receiving 3844 citations.

Business AI Alignment Modeling Based on Enterprise Architecture.

Abstract: In this work, we consider the construction of a model on a project developing an Artificial Intelligence (AI) system and propose a modeling approach to represent the project for various application domains by using Enterprise Architecture (EA) modeling. By the proposed modeling approach, we confirmed that project members from both business and development divisions can have a common understanding regarding the project, and the efficiency of the AI technologies applied in the project can be assessed from a business viewpoint.

Human capital and economic growth in japan: 1885–2015

Abstract: This study presents growth account for Japan for the 130 years from 1885 to 2015 based on the measurement of labor quality simultaneously taking the effects of education and the allocation of labor across industries into account. The estimation results indicate that, over the 130 years, Japan’s labor productivity rose 46-fold, with increases in the capital-labor ratio accounting for 40 percent of this rise, improvements in labor quality for 35 percent, and TFP growth for 36 percent. Looking at the periods before and after World War II separately, we found that labor productivity growth accelerated substantially in the postwar period and was twice as high as in the prewar period. This difference in labor productivity growth can be explained by differences in the sources of growth: while growth during the prewar period was driven mainly by improvements in labor quality (with a growth contribution of 37 percent), during the postwar period increases in the capital-labor ratio and TFP growth made the largest contribution (38 percent and 35 percent, respectively).

A comparative study of thermotropic and lyotropic mesophases formed by ammonium dodecanoate

Abstract: The phase diagrams for the ternary system: ammonium laurate + water + n-octanol are obtained at temperatures, 30, 40, and 50 °C. With the samples taken from the homogeneous liquid crystalline phase in the phase diagram whose structure is lamellar, the flow properties are measured and shear rate vs. shear stress relation and apparent viscosity vs. shear rate relation, at different temperatures, are obtained. These experimental results are compared with the similar relations previously obtained with the thermotropic mesophase of anhydrous ammonium laurate. Both lyotropic and thermotropic mesophases are common in showing Bingham type plastic flows with large yield values and large viscosity values. However, they are different in the dependence of viscosity on temperature, the values of the activation energy for viscous flow for the thermotropic mesophase being found more than ten times greater than those for the lyotropic mesophase. The similarities and differences between the two kinds of mesophases are discussed from the viewpoint of the molecular kinetic theory. The problem of the analogy between mesophases and colloidal systems is briefly criticized.

The Value-Relevance of Book Value, Current Earnings, and Management Forecasts of Earnings

Abstract: This paper investigates the value-relevance of book value, earnings, and management forecasts of earnings in Japan over the past twenty years. Although most value-relevance studies in the U.S. use return and price based models whose theoretical foundations are derived from the Ohlson (1995) linear information model, other information, v, in the Ohlson's model is ignored in both types of model. This research exploits the unique setting in Japan where managers simultaneously announce the most recently completed period's earnings as well as forecasts of next period's earnings. In this case, management forecasts are available for use as a proxy for v. The results in this paper indicate that management forecasts of earnings (changes) have the highest correlation with stock price (returns) and the incremental explanatory power of current earnings (changes) almost disappears when management forecasts of earnings (changes) are included in the models. The market also appears to place more importance on management forecast information when firms are growing rapidly and when firms' current earnings exceed the forecasts made at the beginning of the period.