PRINTEPS: An Integrated Intelligent Application Development Platform based on Stream Reasoning and ROS

Although AI and service robot applications have become very popular in many domains recently, many of them are specific applications and it is still difficult to develop integrated intelligent applications such as a robot teahouse and teaching assistant robots. To develop such integrated intelligent applications, we need integrated intelligent application platforms that have AI integration and agile process facilities. From the above background, we are currently developing PRactical INTElligent aPplicationS (PRINTEPS), which is a platform for developing integrated intelligent applications by combining only five types of modules, namely knowledge-based reasoning, spoken dialogue, image sensing, motion management, and machine learning. This paper proposes a workflow editor in PRINETPS based on a service-oriented architecture and a Robot Operating System that enables real-time parallel processing for multiple robots and sensors by integrating the five types of modules. The editor also supports not only developers but also domain experts in updating workflows frequently. This paper also proposes a novel method to integrate signals acquired through image sensing with knowledge (ontologies and business rules) using C-SPARQL and Semantic Web Rule Language. To evaluate PRINTEPS, we developed a robot teahouse application including customer reception and guidance to table services using a humanoid robot with PRINTEPS. Through this case study, we demonstrated that the behaviors of the robot can be modified by changing the workflow, the ontology, and the rules.     

Endogenous Market Structures in the Presence of a Socially Responsible Firm

We consider the endogenous selection of strategic contracts in an asymmetric duopoly with substitutable goods. the duopoly comprises a typical managerial firm with a sales delegation and a socially responsible firm (CSR firm) with a linear combination of social welfare and quantity as its managerial delegation contract. In particular, we examine how the equilibrium market structure changes from the case wthere both firms adopt sales delegation contracts to the case wthere one of the firms becomes a CSR firm, after the owners of the firms select their strategic contracts. We show that two market structures that are asymmetric with respect to their strategic contracts can become equilibrium market structures under the pure strategic contract class. Furthermore, we consider a unique mixed strategy equilibrium to examine how the risk domination between the two asymmetric equilibrium market structures affects equilibrium selection. there, we find that the competition wthere the firm with the sales delegation and the CSR firm have a price contract and a quantity contract, respectively, risk-dominates the competition wthere the firms have a quantity contract and a price contract, respectively. Finally, by deriving the order of social welfare among the four subgames, we show that the social incentive does not coincide with the private incentive in the robust equilibrium with respect to risk domination in the endogenous selection game of the strategic contracts of the asymmetric duopoly with the firm with a sales delegation and the CSR firm.     

Human resource management in Asian subsidiaries: comparison of French and Japanese MNCs

European and Japanese multinational corporations (MNCs) have expanded their activities in Asia, usually through massive mobilization of various human resources from head offices, whether expatriated or on short-term assignments, and a reliance on diverse categories of local employees. Because expatriation is costly, difficult and often limited in its results, MNCs have developed localization strategies for management positions to support their regional development. This contribution addresses such a scenario by comparing Japanese and French MNCs in eight Asian countries, based on 53 interviews across subsidiaries of 17 MNCs. We find that Japanese MNCs have not localized management positions as much as French MNCs, but they have grown more willing to do so. To compensate for the lack of local capabilities without sending more expatriates, both French and Japanese MNCs frequently send experts on short-term assignments. Finally, though human resource practices vary widely across countries, even for a given MNC, some harmonizing principles have been introduced to regional HRM strategies recently.     

Endogenous timing in a mixed duopoly: price competition with managerial delegation

We introduce a managerial delegation contract into the mixed duopoly model and examine its influence on price setting in a mixed duopoly in the context of the endogenous‐timing problem. We obtain the result that owners of a public and a private firm prefer to delay the setting of the prices of their products as much as possible. Thus, in equilibrium, the firms choose their prices simultaneously in the latter stage of the game. This is in contrast to the findings of the entrepreneurial case, according to which firms choose prices simultaneously in the former stage. Copyright © 2009 John Wiley & Sons, Ltd.     

Credit and Business Cycles

This paper presents two dynamic models of the economy in which credit constraints arise because creditors cannot force debtors to repay debts unless the debts are secured by collateral. The credit system becomes a powerful propagation mechanism by which the effects of shocks persist and amplify through the interaction between collateral values, borrowers' net worth and credit limits. In particular, when fixed assets serve as collateral, I show that relatively small, temporary shocks to technology or wealth distribution can generate large, persistent fluctuations in output and asset prices.
JEL Classification Numbers: E32, E44     

2002 LAWRENCE R. KLEIN LECTURE LIQUIDITY AND ASSET PRICES*

We broadly define liquid assets, or monetary assets, as any asset that can be readily sold in the market and can be held by a number of people in succession before maturity. We ask in what environment is the circulation of liquid assets essential for the smooth running of the economy. By developing a canonical model of a monetary economy (i.e., where the circulation of liquid assets is essential), we are able to examine the interaction between liquidity, asset prices, and aggregate economic activity.