JaLCDOI 10.18926/OER/53104
Title Alternative A Note on Pecuniary Reward, Punishment and Erratic Contribution Behavior
FullText URL oer_046_2_213_221.pdf
Author Yokoo, Masanori|
Publication Title 岡山大学経済学会雑誌
Published Date 2014-12-18
Volume volume46
Issue issue2
Start Page 213
End Page 221
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/gakkai/
language 日本語
Copyright Holders Copyright © 2014 岡山大学経済学会
File Version publisher
NAID 120005540382
JaLCDOI 10.18926/OER/52083
Title Alternative A Note on Faculty Development from an Evolutionary Viewpoint
FullText URL oer_045_3_085_099.pdf
Author Yokoo, Masanori|
Publication Title 岡山大学経済学会雑誌
Published Date 2013-12-20
Volume volume45
Issue issue3
Start Page 85
End Page 99
ISSN 0386-3069
language 日本語
Copyright Holders Copyright © 2013 岡山大学経済学会
File Version publisher
NAID 120005359122
JaLCDOI 10.18926/OER/49032
Title Alternative An Evolutionary Analysis of an Asymmetric Tiny Rock-Scissors-Paper Game
FullText URL oer_044_3_093_099.pdf
Author Yokoo, Masanori|
Publication Title 岡山大学経済学会雑誌
Published Date 2012-12-10
Volume volume44
Issue issue3
Start Page 93
End Page 99
ISSN 0386-3069
language 日本語
Copyright Holders Copyright © 2012 岡山大学経済学会
File Version publisher
NAID 120005053304
JaLCDOI 10.18926/OER/40933
FullText URL oer_033_3_019_032.pdf
Author Yokoo, Masanori|
Abstract Paul Krugman (1991) proposed a geographic model in which a country consisting of two regions can endogenously become differentiated into an industrialized "core" and an agricultural "periphery". His model can give rise to multiple equilibria at which manufacturing production is concentrated in one region or divided between the both regions. We introduce to his basically static model a discrete−time adjustment process which leads the workers who earn lower real wage than the average to migrate to the other region which offers them higher real wage. Numerical simulations suggest not only that persistent endogenous fluctuations in manufacturing share are possible but also that discontinuous changes in manufacturing share over time can occur without any changes in the underlying system. Furthermore, the basin of attraction for a concentration steady state turns out to have a complicated structure for high transportaion costs.
Publication Title 岡山大学経済学会雑誌
Published Date 2001-12-10
Volume volume33
Issue issue3
Start Page 19
End Page 32
ISSN 0386-3069
language 英語
File Version publisher
NAID 110000130109
JaLCDOI 10.18926/OER/40527
FullText URL oer_036_2_035_048.pdf
Author Yokoo, Masanori|
Abstract This note considers a situation in which the publisher of an academic journal seeks to maintain the number of contributions to the journal by subsidizing the contributors with some incentive payments. We show that under the incentive payment scheme that distributes some pre−determined total amount of payments equally to each contributor (the constant total payment scheme), the number of contributions can fluctuate cyclically as well as chaotically over time when the potential contributors form adaptive expectations. Numerical simulations suggest, among other things, that the performance of the constant total payment scheme may be more efficient than the constant per−capita payment scheme when the total amount of payments is supposed to be small.
Publication Title 岡山大学経済学会雑誌
Published Date 2004-09-10
Volume volume36
Issue issue2
Start Page 35
End Page 48
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/gakkai/
language 英語
File Version publisher
NAID 120002576148
JaLCDOI 10.18926/OER/40500
FullText URL oer_037_2_057_063.pdf
Author Yokoo, Masanori|
Abstract In many standard undergraduate textbooks of macroeconomics, open economies are discussed by means of the Mundell−Fleming model, an open macroeconomic version of the IS−LM model. This short paper develops a simple differential−equation version of the dynamic Mundell−Fleming model, taking account of two key assumptions : (i) the Marshall−Lerner condition is globally violated and (ii) the investment function depends nonlinearly on the current output level. Under our settings, we demonstrate that the exchange rate and the other relevant variables can display persistent fluctuations due to the occurrence of a stable limit cycle. We also discuss a paradox that the resulting dynamics may well be consistent with the J−curve effect.
Publication Title 岡山大学経済学会雑誌
Published Date 2005-09-10
Volume volume37
Issue issue2
Start Page 57
End Page 63
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/gakkai/
language 英語
File Version publisher
NAID 120002514605
JaLCDOI 10.18926/OER/40487
FullText URL oer_037_1_053_061.pdf
Author Yokoo, Masanori|
Abstract This paper considers a dynamic commons game in relation with mitigation of invasive alien species such as nutria in Okayama. In our commons game, players (trappers) non−cooperatively seek to maximize their own payoff by extracting the renewable resource stock (nutria). One key assumption is that the cost of extraction of the resource is negatively related to the current stock level. For a low level of resource stock, the extraction cost is high, which makes the extraction less lucrative for the players and which in turn stimulates the renewable resource stock to regenerate more rapidly. As the resource stock reaches a high level, the reverse process will start, and this can cause oscillating behaviors. Our simple model proposed here exemplifies that an increase in the number of players can drastically change the qualitative as well as quantitative features of the dynamics for the renewable resource stock.
Publication Title 岡山大学経済学会雑誌
Published Date 2005-06-10
Volume volume37
Issue issue1
Start Page 53
End Page 61
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/gakkai/
language 英語
File Version publisher
NAID 120002514603
JaLCDOI 10.18926/OER/40219
Title Alternative Consumption-tax-financed fertility policy and persistent intergenerational inequality: A preliminary exploration
FullText URL 042_2_077_087.pdf
Author Yokoo, Masanori|
Abstract The paper incorporates into a standard two-period-lived overlapping generations model with Cobb-Douglas utility and Cobb-Douglas production technology a government that levies a tax on consumption and households that have an opportunity to choose the fertility rate. The government spends all the tax revenue to finance the policy aiming to increase the national birth rate. Each young household faces a binary choice between 'high fertility' and 'low fertility', depending on the level of the government’s expenditure on that policy. The government’s policy together with the fertility choice by the households can give rise to strong nonlinearity in the transition equation of the economy. Numerical simulations show that the economic system exhibits endogenous cyclical or chaotic fluctuations in fertility for a large set of values of consumption tax rates. It is also numerically shown that some (inappropriate) choice of the tax rate by the government can cause persistent intergenerational inequality.
Publication Title 岡山大学経済学会雑誌
Published Date 2010-09-10
Volume volume42
Issue issue2
Start Page 77
End Page 87
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/gakkai/
language 日本語
Copyright Holders 岡山大学経済学会
File Version publisher
NAID 120002401096
JaLCDOI 10.18926/OER/21507
Title Alternative On stabilization of chaotic economic growth using capital nationalization and birth control
FullText URL oer_042_1_001_016.pdf
Author Yokoo, Masanori|
Abstract 生産を含む世代重複モデルにおいて,2つのマクロ政策の混合を検討する。ひとつは,政府が資本や土地などの資産を国有化し,民間部門に永続的に貸与することである。もうひとつは,産児制限などにより人口成長率を制御することである。政府が存在しない単純な経済では,一般に定常状態は,ひとつの最適性の条件である黄金律を満たさないが,第1の政策により発生する定常状態のひとつは黄金律を満たす。しかし,その黄金律定常状態は,必ずしも動学的安定性を持たず,場合によっては,カオス的な不変集合に含まれる。特にそのような場合に,第2の政策として,カオスの特性を利用するOGY 法を援用することで,人口成長率を任意に小さな振れ幅で制御しながら,不規則に変動する成長循環経路を黄金律均斉成長経路に同期させる方法を議論する。
Abstract Alternative This paper investigates a policy mix of two macroeconomic policies in an overlapping generations economy with production. One policy is that the government nationalizes assets such as productive capital or land and lends them perpetually to the private sector. The other one is to control the rate of population growth via e.g. birth control. Generally, in a simple OLG economy with no government, the steady states do not necessarily satisfy the golden rule, which is a criterion for optimality. However, one of the steady states generated by the first policy does satisfy the golden rule criterion. Nonetheless, the golden rule steady state does not necessarily possess dynamic stability, and may be contained in a chaotic invariant set. Especially, in the last mentioned case, we examine how to synchronize the irregularly fluctuating growth paths to the golden rule balanced growth path. To do this, our second policy fine-tunes the population growth rate in arbitrarily small amplitude, making use of the OGY method, which exploits the features of chaos.
Publication Title 岡山大学経済学会雑誌
Published Date 2010-06-25
Volume volume42
Issue issue1
Start Page 1
End Page 16
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/~shiryou/gakkaishi.htm
language 日本語
Copyright Holders 岡山大学経済学会
File Version publisher
NAID 120002310956
JaLCDOI 10.18926/OER/19854
Title Alternative A Note on Exchange Rate Dynamics of a Small Country Exposed to the Global Business Cycle
FullText URL 41_3_047_062.pdf
Author Yokoo, Masanori|
Abstract 本稿では,開放マクロ経済学でよく利用される Mundell-Fleming モデルの動学版を2つの方向に拡張し,そこから得られる為替レートの変動を調べる。第1の拡張は,定常状態での局所的な Marshall-Lerner 条件を維持しつつ,大域的にはそれが満たされない状況を定式化することである。より詳しく言うと,通常の定常状態の近傍では小国である自国の通貨の減価は純輸出を増加させるが,為替レートがその範囲を超えると,逆に自国通貨の減価が純輸出を減少させるという状況である。第2の拡張は,大国である外国,あるいは世界経済,が持続的かつ周期的な景気循環に曝されている状況をモデルに組み入れることである。このような設定のもとで,為替レートが自国通貨高均衡と自国通貨安均衡のそれぞれの周囲を経巡るような複雑な変動を生じることを計算機による数値計算により観察する。
Publication Title 岡山大学経済学会雑誌
Published Date 2009-12-10
Volume volume41
Issue issue3
Start Page 47
End Page 62
ISSN 0386-3069
Related Url http://www.e.okayama-u.ac.jp/~shiryou/gakkaishi.htm
language 日本語
Copyright Holders 岡山大学経済学会
File Version publisher
NAID 120002309171
Author 横尾 昌紀|
Published Date 2004
Publication Title 北東アジア経済研究
Volume volume1
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/1658