[arsc-ml 33] ARSC-mlからのお知らせ

[nhosoe ＠ grips.ac.jp]

□名前:細江宣裕
□所属:政策研究大学院大学
□会員:会員
□お知らせの内容:研究会関連
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□内容
　:各位
　リマインダです。今週末の土曜日にポリシー・モデリング・ワークショップを開催いたします。
ふるってご参加ください。
http://www3.grips.ac.jp/~nhosoe/pmw/index.html
細江
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2018年度(予定)

第2回

日時: 2018年7月14日(土)

場所: 政策研究大学院大学 4階 会議室4B

14:00-15:50

講演者: 中島賢太郎氏 (一橋大学)

題目: Impact of workplace communication networks on productivity: A new
approach using wearable sensors

概要: This paper empirically investigates the structure of communication
networks among employees within a firm and the impact of the
communication networks on their productivity. To collect information
on face-to-face communication among employees quantitatively, we use
wearable sensors that automatically record data on face-to-face
communication among employees wearing them at two offices of a company
that provides software support to corporate clients. Using the data,
we first show the structure of the communication network using
sociogram. Next, we investigate the impact of the communication
network on productivity. The results show that an increase in
betweenness centrality in a communication network has a positive and
significant impact on office performance. Communication between
employees can be interpreted as the transfer of their specialized
knowledge. Thus, it is considered that an employee’s high betweenness
centrality indicates that the employee efficiently gathers information
from various colleagues through the communication network. These
results imply that the efficient gathering of information through
face-to-face communication with various colleagues who have
specialized expert knowledge improves productivity by helping to solve
complicated problems that employees face.

16:10-18:00

講演者: 小西祥文氏 (筑波大学)

題目: Do Regulatory Loopholes Distort Technical Change? Evidence from
New Vehicle Launches under the Japanese Fuel Economy Regulation

概要: We empirically examine the distortionary impact of regulatory
loopholes on technical change in the context of the Japanese
fuel-economy regulation. We construct a model of firm's product choice
under technology constraints (i) to substantiate the importance of the
distinction between first-stage technology choice versus second-stage
choice of product attributes for welfare and policy evaluation and
(ii) to generate a testable economic hypothesis that attribute-based
technology standards distort technical change when they create
trade-offs between product attributes that differ from technically
feasible trade-offs. We test this hypothesis in a unique data set on
new product launches in the Japanese automobile industry. To control
for the Ratchet effect and other time-varying confounders, we exploit
the unique quasi-experimental variations in terms of width and
stringency of standards across product segments over time, and
construct two-fold treatment-control structures within each product
segment. We find that contrary to earlier studies, the attribute-based
standards did not induce sharp bunching at the notches, yet the
differences in attribute trade-offs arising from these notches indeed
induced different rates of technical progress, causing substantial
distortion in technical change in the Japanese automobile industry.





-- 
Nobuhiro Hosoe, Ph. D.
Professor, Director of Admissions Office
National Graduate Institute for Policy Studies (GRIPS)
7-22-1 Roppongi, Minato, Tokyo 106-8677, Japan
Tel: +81-3-6439-6129, Fax: +81-3-6439-6010, E-mail: nhosoe ＠ grips.ac.jp
URL: http://www3.grips.ac.jp/~nhosoe/
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Textbook of CGE Modeling: Programming and Simulations
[JPN (2nd edition): 4130402722], [ENG: 0230248144], [CHN: 7565415316]

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