The impact of foreign firms on industrial productivity : evidence from Japan

With a newly constructed dataset on foreign firms in Japan for the period 1995-2008 from firm-level surveys, this paper estimates the impact of foreign firms on industrial productivity at the regional level. A Bayesian-model averaging approach is taken to account for model uncertainty resulting from various linkages between foreign firms and domestic industries. The results show that the foreign firms may contribute to industrial efficiency directly through their above-average productivity and indirectly through positive spillovers in intra-industry and local backward linkages. Forward linkages with foreign firms may have a negative impact on industrial productivity. However, these impacts depend on the nationality and entry mode of foreign investors. Aggregating foreign firms may mask their distinctive impacts on productivity.

Efficiency improvement of HF communications using cognitive radio principles

Cognitive Radio principles can be applied to HF communications to make a more efficient use of the extremely scarce spectrum. In this contribution we focus on analyzing the usage of the available channels done by the legacy users, which are regarded as primary users since they are allowed to transmit without resorting any smart procedure, and consider the possibilities for our stations -over the HFDVL (HF Data+Voice Link) architecture- to participate as secondary users. Our goal is to enhance an efficient use of the HF band by detecting the presence of uncoordinated primary users and avoiding collisions with them while transmitting in different HF channels using our broad-band HF transceiver. A model of the primary user activity dynamics in the HF band is developed in this work. It is based on Hidden Markov Models (HMM) which are a powerful tool for modelling stochastic random processes, and is trained with real measurements from the 14 MHz band.

Fatigue and efficiency: a study in industry

by Josephine Goldmark ; introduction by Frederic S. Lee ...

Mastering power production : the industrial, economic and social problems involved and their solution /

Mode of access: Internet.

Report of the United States Bureau of Efficiency for the period from ...

Report period ends Oct. 31.

Survey of research in the field of industrial relations,

Autographed, on one side of leaf only, from type-written copy.

Personnel management and industrial relations,

"Formerly Personnel and labor relations."

Factory and industrial management.

Vol. 84, no. 2 incorrectly numbered v. 85, no. 2.

Bibliography of industrial engineering and management literature to Jan. 1, 1943,

Reproduced from type-written copy.

The Nation's health; [A monthly magazine devoted to community, industrial & institutional health problems]

Vol. 1, no.1-8 called "new ser.", also "old ser., v.26, no.4-11".

Fatigue efficiency;

Mode of access: Internet.

Industrial government,

A study of eighteen industrial establishments visited from July to September 1919.

Like milk or wine: Does firm performance improve with age?

Our empirical literature review shows that little is known about how firm performance changes with age, presumably because of the paucity of data on firm age. For Spanish manufacturing firms, we analyse the firm performance related to firm age between 1998 and 2006. We find evidence that firms improve with age, because ageing firms are observed to have steadily increasing levels of productivity, higher profits, larger size, lower debt ratios, and higher equity ratios. Furthermore, older firms are better able to convert sales growth into subsequent growth of profits and productivity. On the other hand, we also found evidence that firm performance deteriorates with age. Older firms have lower expected growth rates of sales, profits and productivity, they have lower profitability levels (when other variables such as size are controlled for), and also that they appear to be less capable to convert employment growth into growth of sales, profits and productivity.

Gestió del parmetratge

L'objectiu funcional de l'aplicació és la gestió del parametratge d'una organització, és a dir, de totes aquelles dades de consum horitzontal per part de qualsevol altra aplicació més especialitzada. Aquesta implementació es realitza posant émfasi en aspectes molt importants a nivell empresarial: transaccions i rendiment.