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(プログラム最終版, 2014/5/16)
日付:
2014年5月31日
時間:
10:00-18:15
会場:
金沢星陵大学A23教室
地図:
交通:
金沢駅→金沢星稜大学へのバス時刻表
プログラム
第1セッション: 午前の部
座長:
(早稲田大学)
10:00-11:05
The Impact of Scoring Auctions in Public Procurement
Abstract:
Scoring auctions are commonly used to award contracts in public procurement because the government is concerned not only with the procurement costs but also with the quality of works. In this paper, we quantify the benefit of scoring auctions over standard (priceonly) auctions. We develop a structural model of a standard auction which allows us to simulate the outcome of a scoring auction without using a data set of scoring auctions. In a unique data set of standard auctions for our analysis, the quality score of work is included in addition to bids and the number of bidders in each auction. The quality score consists of the information on the performance of work in addition to the information on the completion time. Using the structural model, we show that the quality of work improves by more than 10% and the welfare gain for the government is about 5-7% under scoring auctions. Moreover, we provide two sources of the potential benefit of implementing scoring auction to discuss when using scoring auctions is more beneficial: the difference of the marginal costs of the cost functions to improve the quality of works and the uncertainty of the winning bidders' private information included in the cost functions from the government's perspective. We compare large-scale and complex projects with small-scale and simple projects using bridge and painting work as an example for each. We find that scoring auctions are more effective to bridge work compared with painting work.
報告者:
鶴岡昌徳
(東京大学)
討論者:
(大阪市立大学)
11:05-11:10
休憩
11:10-12:15
What Prevents Inter-industry Labor Reallocation?
Abstract:
Finding an efficient way for labor reallocation is important in the context of macroeconomic policies, especially under a shrinking working-age population. At the same time, however, it is widely known that an inter-industry job change is often associated with a substantial reduction in earnings. This paper investigates the factors preventing inter-industry labor reallocation by estimating the determinants of inter-industry worker flow and earnings regression after a job change. We find that the difference in required skills is an important reason for reduction in earnings after an inter-industry job change, and thus, it is a major obstacle for inter-industry mobility. On the other hand, industry performance does not affect labor inflow significantly, implying the lack of spontaneous labor reallocation from less productive to more productive sectors.
報告者:
(横浜国立大学)
討論者:
(日本大学)
12:15-13:30
昼食
第2セッション: 午後の部 I
座長:
(東北大学)
13:30-14:35
Agglomeration, Segmentation and Technology Choice
Abstract:
This paper presents a simple two country model in which firms in manufacturing sector choose a technology level (high or low). I show how trade integration and productivity differential affect technology choice clearly. In particular, if the gap of productivity of high technology is medium, firms locating in country employ high technology and other firms in developing country do low technology. In this case, increasing productivity of high technology makes the welfare level of a consumer in low technology country decrease.
報告者:
澤田有希子
(大阪大学)
討論者:
(慶應義塾大学)
14:35-14:40
休憩
14:40-15:45
Semiparametric Estimation of Time, Age and Cohort Effects in a Hedonic Model of Housing Prices
Abstract:
本研究はヘドニック住宅価格指数を計測における，時間効果，年齢効果および世代効果の識別を一般化加法モデルによって行う。線形回帰モデルにおける時間効果，年齢効果および世代効果の間には完全な線形関係が生じる。一般に，取引時点に関する時間ダミー変数のほかに，建築後年数または竣工年次を表す変数のどちらかを利用するケースは既存研究で十分にあるが，両方を同時に扱ったものや，なんらかの非線形性を仮定して，識別問題そのものに取り組んだ研究はほとんどない。竣工年次は住宅の残存資本価値を測るための情報を持つと同時に，竣工時点における経済状況をも代理していると考えられる。また，竣工年次の古い物件の多くは，取り壊され，新築の住宅として生まれ変わる。しかし，一部の住宅は修繕やメンテナンスが十分に行われることによって，住宅市場において生き残っている可能性がある。つまり，データとして観察される竣工年次の古い物件ほど，年齢効果をコントロールしたとしても高い価格で取引されている可能性がある。これが世代効果として残る理由として考えられる。修繕やメンテナンスに関する詳細な情報が利用できない場合，このことは分析者にとって致命的であり，本研究の手法はデータの悪条件を克服する上で役に立つことが示される。
報告者:
(富山大学)
討論者:
(一橋大学)
15:45-16:00
休憩
第3セッション: 午後の部 II
座長:
(専修大学)
16:00-17:05
Firing Cost, R&D, and Industry Dynamics
Abstract:
In this research, we construct a dynamic oligopoly model with firing cost and R&D. Numerical results show that firing costs polarize the quality distribution, and increase mean quality and productivity level though it reduce the economic welfare.
報告者:
(九州大学)
討論者:
(東北大学)
17:05-17:10
休憩
17:10-18:15
Asset Bubbles, Endogenous Growth, and Financial Frictions
Abstract:
This paper analyzes the existence and the effects of bubbles in an endogenous growth model with financial frictions and heterogeneous investments. Bubbles are likely to emerge when the degree of pledgeability is in the middle range. This implies that improving the financial market might enhance the possibility of bubbles. We also find that when the degree of pledgeability is relatively low, bubbles boost long-run growth. When it is relatively high, bubbles lower growth. Moreover, we examine the effects of bubbles bursting, and show that the effects depend on the degree of pledgeability, i.e., the quality of the financial system. Furthermore, we conduct a full welfare analysis of asset bubbles.
報告者:
(東京大学)
討論者:
(大阪大学)
TBA-
懇親会: TBA
注: それぞれ報告40分，予定討論10分，一般討論15分を予定しています．