An Advertising Strategy Using Consumption Externality and Forgetting in the Case of Japanese Electronic Books

We construct a two-period model in which a consumer recognizes the existence of goods after advertised by firms, and total sales of the first period affect the utility of each consumer’s purchase in the second period, indicating a consumption externality. Some consumers see advertisements in the first period and remember the product, whereas some forget the product in the second period. We show that the advertising volume changes given the differences in the forgetting rate. In particular, we apply our method to the data on Japan’s electronic books obtained through a conjoint analysis survey to clarify that a better strategy is to sell a product to a small number of people at a low price or to lower the price to a certain level during the early period, and then to sell the product to a specific consumer segment at a higher price after reflecting the externality.     

Endogenous nominal rigidities and monetary policy

Recent empirical research finds that the degree of nominal rigidities varies over monetary policy regimes. This implies that monetary policy analysis with exogenously given nominal rigidities is subject to the Lucas critique. We allow firms to choose the probability of price adjustment in a Calvo-style sticky price model, and analyze how this probability changes according to an inflation coefficient of the Taylor rule. The model shows that a more aggressive monetary policy response to inflation makes firms less likely to reset prices and gives the resulting New Keynesian Phillips curve a flatter slope and a smaller disturbance, as observed during the Volcker-Greenspan era. Also, such a policy response can stabilize both inflation and the output gap by exploiting the feedback effects of this policy response on firms’ price-setting. These results offer theoretical support for the good policy hypothesis about the Great Moderation.     

Effects on poverty and equity of the decline in collective tank irrigation management in Tamil Nadu, India

This paper investigates the factors influencing the decline in collective management of local commons and the impact of this decline on agricultural production and household consumption. The analysis is based on a village and household data set collected in 1999 in Tamil Nadu, India, where tank irrigation systems are managed collectively for rice cultivation by informal water users' organizations. Our statistical analyses find that one major reason for the decline in collective tank irrigation management is the dissemination of private well irrigation systems. Once the decline has occurred, our analyses predict that the gap in rice yields between farmers who have access to private wells and those who must rely solely on tanks will widen, with only the latter group suffering lower yields. Our analyses also find that the same pattern holds for levels of income and consumption because the affected farmers cannot sufficiently compensate for the loss of their rice income by diversifying their income sources to agricultural labor or nonagricultural work. In this way, the decline in collective management results in greater inequality and poverty.     

Sequential procurement auctions with risk-averse suppliers

We compare two procurement mechanisms, bundling and unbundling, in a two-stage auction model with risk-averse suppliers. The mechanisms differ in that the two tasks of investment and production are procured through a single auction or two sequential auctions. Suppliers’ production costs are affected by two risk factors, aggregate risk and idiosyncratic risk, as well as by the cost-reducing investment. We show that the bundling mechanism is optimal for a buyer and socially desirable if the aggregate risk is below certain thresholds. The result may not hold true for idiosyncratic risk.     

Interdependent bank runs under a collapsing fixed exchange rate regime

This paper provides a framework for simultaneous multiple bank runs in a country experiencing a currency crisis. The correlation of bank runs increases as the proportion of debts from foreign creditors (indexed to the dollar) to domestic creditors (indexed to the domestic currency) increases. Moreover, when the share of dollar debt is sufficiently high, this interlinkage is perfect; that is, runs occur in all banks or not at all. Consequently, a situation exists where even a solvent bank cannot borrow in the interbank market. These findings imply that as the domestic banking sector becomes increasingly dependent on dollar debt, there is a heightened requirement for dollar reserves and a lender-of-last-resort facility.     

Integrating Smart Glasses with Question-Answering Module in Assistant Work Environment

Recently, smart glasses have been applied in the field of maintenance, with which a worker goes well during work by contacting a support operator from a remote location. The worker, however, cannot go well if the support operator is not there. To solve the issues, this paper discusses how a work system should be developed by integrating smart glasses with a question-answering module. We design the work knowledge acquired from skilled people and manuals as a workflow for when type of question, rule base for how, goal tree for why, domain ontologies, and its RDF data for what. Workers can receive answers from the question-answering module incorporated with multiple knowledge bases for four types of question. The authors conducted a demonstration experiment and found that workers could perform the work more autonomously by importing the system.     

日本农业协同组织的发展新动向与面临的挑战——日本案例和对中国农民专业合作社的启示

日本农业协同组织已经有100多年的历史并具备一定的规模,从事的业务种类繁多,成员也从农民会员扩大到非农民会员,近年来也面临新问题与挑战.本文主要介绍了日本农民协会管理理念与模式、经营业务以及近几年所面临的问题,从而为正在发展中的中国农民专业合作社提供参考.