Does downsizing take a toll on retained staff? An analysis of increased working hours during recessions using Japanese micro data

Using official household micro data from the Labour Force Survey, this paper examines the increase in the working hours of regular male employees in Japan under recession from the late 1990s to the early 2000s. The most important findings of this paper are that working hours tended to be longer among male regular employees of firms in which (1) there was major employment adjustment, (2) substantial increase in proportion of non-regular workers, and (3) wide variance in regular wages. The results suggest that the existence of a large amount of fixed duties that are necessary to maintain internal organization and transition from the traditional employment system are the main factors that explain the increase in the working hours during the recession in Japan.

非摂動環境下における熱力学の量子開放系による動的な研究:エントロピー生成と非平衡仕事への応用

京都大学新制・課程博士博士(理学)甲第23028号理博第4705号新制||理||1675(附属図書館)京都大学大学院理学研究科化学専攻(主査)教授 谷村 吉隆, 教授 渡邊 一也, 教授 林 重彦学位規則第4条第1項該当Doctor of ScienceKyoto UniversityDGA

Dynamics of gas sphere under self-gravity

A new dynamical solution for a gas sphere under self-gravity is presented to describe a development of a gas sphere from a motion-less state to a state of expansion with a constant speed and a reflection phenomenon in the dynamics of the surface of the sphere.Comment: 6 pages, 4figure

The Relation between the Scope of Corporate Purposes and the Limits of Duty to Cooperate of the Constituent Member in connection with the Freedom of Thought or Conscience

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Population Outflow from Earthquake-Stricken Areas and Resindent-led Reconstruction: A Theoretical Analysis

We build a cultural transmission model to consider an effective measure for mitigating population outflow from areas affected by the Great East Japan Earthquake. In an economy with firms and two heterogeneous agents (residents within earthquake stricken areas and around these areas), when the stable interior steady state exists in our system, first we analyze how subsidies to firms affect the steady state population share for residents in earthquake stricken areas. Depending on conditions, the policy may either succeed (an increase in the population share compared to the case with no policy) or fail (a decrease in the share). Second, even if the subsidy policy fails, resident-led reconstruction efforts could potentially increase the steady state population share for residents when subsidy is simultaneously given. From the analysis, we find that resident-led reconstruction efforts can be an effective measure to mitigate the population outflow in earthquake stricken areas

Gene Expression and the Physiological Role of Transforming Growth Factor-α in the Mouse Pituitary

Transforming growth factor-alpha (TGF-alpha), a member of the epidermal growth factor (EGF) family, is produced within the mouse anterior pituitaries. However, the cell types of TGF-alpha-expressing cells and the physiological roles of TGF-a within mouse pituitary glands remain unclear. The aim of the present study was to localize TGF-alpha mRNA-expressing cells, and to clarify the involvement of TGF-alpha in estrogen-induced DNA replication in mouse anterior pituitary cells. Northern blot analysis demonstrated TGF-alpha mRNA expression in adult male and female mouse anterior pituitaries. In situ hybridization analysis of the pituitaries in these mice showed that TGF-alpha mRNA-expressing cells in the anterior pituitary are round, oval, and medium-sized. TGF-alpha mRNA was colocalized in most of the growth hormone (GH) mRNA-expressing cells, while only some of the prolactin (PRL) mRNA-expressing cells. DNA replication in the anterior pituitary cells was detected by monitoring the cellular uptake of a thymidine analogue, bromodeoxyuridine (BrdU) in a primary serum-free culture system. Estradiol-17beta (E2) and TGF-alpha treatment increased the number of BrdU-labelled mammotrophs, indicating that E2 and TGF-alpha treatment stimulates the DNA replication in mammotrophs. Immunoneutralization of TGF-alpha with anti-TGF-alpha-antibodies nullified the E2-induced increase in DNA replication. RT-PCR analysis of TGF-alpha mRNA expression in ovariectomized female mice revealed that E2 increases TGF-alpha mRNA levels. These results indicate that the TGF-alpha produced primarily in the somatotrophs mediates the stimulatory effects of estrogen on the DNA replication of pituitary cells in a paracrine or autocrine manner