Return to the “natural” process of decision-making leads to good strategies

A novel approach to strategic management, Risk-Constrained Optimization (RCO), is an ensemble of special models, procedures, and algorithms to generate, evaluate, and help in executing good alternative strategies. RCO is a patented system of planning under uncertainty that searches for the most acceptable compromise between improving results and reducing risk in our decisions. Risk management and scenario planning dominate over optimization. RCO still uses maximization, but only in combination with several protective filters that screen, modify, and scale back the strategies, as necessary. As with any protective equipment, RCO could reduce the need for knowledge about the future.JEL Classification: D21, D81, C61I would like to acknowledge extremely helpful and insightful comments of Professor Mark Perlman (to whom this article owes very, very much), Professor Irma Adelman, Erwin Rezelman, Dr. Victor V. Masch, and an anonymous reviewer. I also greatly appreciate help in editing by David Owens and Professor Irving Rothman.     

Socially Subjective Equilibrium in Strategic Form Games

This study provides a new framework and a new equilibrium concept, which are able to describe the situation where people have various images of the society and have various solution concepts for social outcomes, and where people accept the social outcomes. In socially subjective equilibrium, people have a coherence of their own norms in two senses. One is the consistency of the norm itself. Imagined outcomes should satisfy a certain (subjective) solution concept. The other is the consistency between the imagined outcomes and realized one. These are the main features of our equilibrium concept. This paper forms a part of my doctoral thesis, which is titled “On socially subjective equilibrium”. The first person I would like to thank is my direct supervisor Professor Ken Urai (Osaka University). I obtained a basic idea of the main concept of my doctoral thesis, that is, the solution concept scheme, from Professor Urai. I am grateful to Professor Hiroaki Nagatani (Osaka University) and Professor Ken-Ichi Shimomura (Kobe University), who monitored my works and took efforts in providing me with valuable comments on earlier versions of my thesis. I also obtained a fruitful advice from Professor Kenichi Amaya (Kobe University). Lastly, I specially thank to Kozo Shiraishi (Osaka University).     

Einige absorptionstheoretische Überlegungen zum österreichischen Leistungsbilanzdefizit

Summary The study explains the Austrian current account deficit in terms of a modified and disaggregated absorption approach. In small integrated countries absorption depends not an internal demand alone but on the difference of capacity utilisation at home and abroad. Disaggregation suggests that in years of increasing current account deficits households normally increase their net—saving while entrepreneus increase their net—indebtedness less than proportionally. It is the government which as a rule has high absorption during current account deficits. Since the government demands only few foreign goods, this correlation must be explained indirectly. Four mechanisms are suggested: First that budget deficits increase overall domestic capacity utilisation relative to that of the trade partners and so stimulate imports and restrain exports; secondly: The budget deficit may sustain full employment even if the economy has lost its international competitiveness; thirdly: An oversized public demand diverts capacities from the export industry, or fourthly: The foreign financing of budget deficits leads to a real transfer within a short time. A brief discussion of the Austrian situation attaches most weight to mechanisms one and two, a little less to point four.

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Überarbeitete Fassung eines Referates im Rahmen des Workshop Zahlungsbilanz im Österreichischen Institut für Wirtschaftsforschung am 14. Juni 1977. Der Autor dankt den Teilnehmern des Workshop, insbesonders Dr.H. Handler, Professor Dr.K. Rothschild und Professor Dkim.H. Seidel für wertvolle Anregungen.     

Ein ökonometrisches Quartalsmodell für den monetären Sektor der österreichischen Wirtschaft

Summary This paper describes the development of a quarterly econometric model for the monetary sector oft the Austrian economy. The model consists of 8 behavioural equations and 3 definitions. The equations were estimated by OLS using absolute differences on an annual basis of quarterly time series data. The sample period covers 44 quarters (1^st quarter of 1960 to 4^th quarter of 1970).Behavioural equations were estimated for three components of bank reserves: net free reserves, borrowing from the central bank and short-term net foreign position. The instruments of central bank policy (discount rate, minimum reserve requirements and open market operations), changes in net foreign assets of the central bank and bank deposits constitute important determinants of these reserve components. Central bank borrowing and net foreign assets appear to be planned aggregates, whereas net free reserves have a more residual character. A further equation explains banks' net investment in long-term fixed-interest securities (bonds). Another group of equations was estimated for non-banks' demand for money (defined in the wide sense). Separate equations exist for currency, demand deposits and (private) saving deposits (no satisfactory explanation could be found for time deposits). These monetary aggregates are determined as usual by income variables (the distribution of disposible income between wage and non-wage income) and by the interest rate (effective interest rate of newly issued bonds). Several additional variables improved the degree of explanation. Finally, total bank loans were found to be determined by fixed and inventory investment and by loans from abroad.These structural equations form a linear recursive system which can be solved via reduced form. In order to study the properties of the model several tests were performed. The dynamic solution (values generated by the model were used for lagged endogenous variables) shows that errors do not cumulate in the course of time. As an, example of multiplier analysis the effects of a change in the net foreign reserve assets of the central bank on several endogenous variables are considered. Policy simulations are run for the cases of changes in the discount rate, in minimum reserve requirements and disposible income (e. g. as a result of a change in income tax rate).From the satisfactory results of these tests we conclude that our model represents the structure of the Austrian monetary sector quite well.

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Die Verfasser danken Herrn Professor Dr.E. Streissler für zahlreiche Anregungen.     

Portfolio efficiency of a dynamic capital asset pricing model

In the present study we show that, based on equally weighted portfolios of continuously listed Finnish and Swedish stocks, aDynamic Model of Capital Asset Pricing (DCAPM) outperforms the static Capital Asset Pricing Model (CAPM) in the Super Criterion Test. It is demonstrated that the portfolio efficiency of the dynamic model is improved, when using a properly defined transition matrix in the Kalman Filtering Algorithm.The advice and encouragement of Professor Leif Nordberg (Department of Statistics, Åbo Akademi University) is gratefully acknowledged. I thank Jaana Aaltonen for her assistance in monitoring the computer programs. I also thank an anonymous referee for his valuable comments and suggestions for improving the quality of the paper.     

Non‐Neutrality of the Proposed Resource Super Profits Tax

I explain my disagreement with Professor Lund regarding the non‐neutrality of the proposed Resource Super Profits Tax. I find that, when assets are sold by a firm to another firm or when an exit decision is made between shutting down or selling the project, that distortions from the Resource Super Profits Tax occur. Previous analysis of cash flow taxes did not analyse the effects of assets sales under uncertainty.     

Economics of Guanxi as an Interpersonal Investment Game

The purpose of this paper is to provide a simple model of guanxi given stylized facts. I first outline the intrinsic characteristics of guanxi to draw the stylized facts, and then use these facts to model it as an interpersonal investment game. I find that the degrees of the ability and loyalty of the Recipient must be reasonably high enough for the interpersonal investment to take place. After the investment has occurred, the degree of loyalty must be higher than that of the ability to guarantee stable gaunxi relationships. When the interpersonal investment is made, it is a signal of trust in the ability and loyalty of the Recipient. However, if the ability factor dominates, then the Recipient will not always feel loyal enough to return the favor. This indicates that loyalty counts for more than ability. A related result is that a stable guanxi relationship is unlikely to occur for a highly able person given the equal chance of the two characteristics. This paper also presents some interesting implications for corruption and lock‐in relationships.     

A law of large numbers for large economies

Summary LetX(i),i[0; 1] be a collection of identically distributed and pairwise uncorrelated random variables with common finite mean and variance ². This paper shows the law of large numbers, i.e. the fact that ₀ ¹ X(i)di=. It does so by interpreting the integral as a Pettis-integral. Studying Riemann sums, the paper first provides a simple proof involving no more than the calculation of variances, and demonstrates, that the measurability problem pointed out by Judd (1985) is avoided by requiring convergence in mean square rather than convergence almost everywhere. We raise the issue of when a random continuum economy is a good abstraction for a large finite economy and give an example in which it is not.I am indebted to Hugo Hopenhayn. Furthermore I would like to thank Dilip Abreu, Glenn Donaldson, Ed Green, Ramon Marimon, Nabil Al-Najjar, Victor Rios-Rull, Timothy van Zandt and the editor for useful comments. The first version of this paper was written in 1987.     

Exact equivalence of instrumental variable estimators in an error component structural system

The paper establishes an equivalence result in the context of anm-equation error component structural system, whose disturbances have the usual three-component structure, and whose equations feature explanatory variables of the formz _i, z_t andz _it; the latter vary (respectively) only over individuals, only over time, and over both. Under the stochastic specification assumed, it is shown that the alternative instrumental variables (IV) estimators commonly used in the special cases of this system are all equivalent (numerically identical); the result is a generalization of the equivalences established previously for the special cases. In the single equation (m=1) context, the equivalence requires that the IV set contain variables of the formz _i and/orz _t, and further, in numbers determined by the ranks of (respectively) the individuals-mean and time-mean matrices of the instruments. If such an IV set is common to all equations, the equivalence also holds for the system under joint estimation. The result is used to recommend a couple of estimators for use in panel data, on grounds of computational simplicity.This is a revision of the December 1990 draft with the same title, and is a substantial revision of the April 1990 version entitled: Analysis of an error component structural system. This revision has benefited from comments received from a referee and a editor of this journal. I came to know from an anonymous reader that the equivalence criterion developed in my 1990 a article, used here and the two earlier versions, was infact obtained previously in an unpublished paper by Balestra (1988). Balestra's paper, which was made available to me by Badi Baltagi at the time of this revision, and subsequently by Balestra, considers the equivalence of ^b, ^c and one other estimator which differs from our ^a. Errors, if any, are my responsibility.     

Basic income in the United States: Redefining citizenship in the liberal state

This paper examines citizenship-based arguments for work-conditioned welfare and basic income. I argue that the most common citizenship-based justifications for work requirements—the paternalistic and civic republican arguments—are flawed because of their selectivity, and that the only defensible citizenship-based justification for work requirements is the socialist model, which enforces work requirements universally on all. I offer as a liberal alternative a radically pluralist notion of citizenship, with a kind of universal economic suffrage at its core, to justify an unconditional basic income in the US.     

Market clearing, utility functions, and securities prices

Summary. We prove the existence of equilibrium in a continuous-time finance model; our results include the case of dynamically incomplete markets as well as dynamically complete markets. In addition, we derive explicitly the stochastic process describing securities prices. The price process depends on the risk-aversion characteristics of the utility function, as well as on the presence of additional sources of wealth (including endowments and other securities). With a single stock, zero endowment in the terminal period, and Constant Relative Risk Aversion (CRRA) utility, the price process is geometric Brownian motion; in essentially any other situation, the price process is not a geometric Brownian motion.JEL Classification Numbers: D52.This paper is part of my Dissertation (UC Berkeley). I am very grateful to my advisor Professor Robert M. Anderson. I also would like to thank Steve Evans, Roger Purves, Jacob Sagi, Chris Shannon and the participants of the 2002 NBER General Equilibrium Conference at the University of Minnesota (Minneapolis) for very helpful discussions and comments. This work was supported by Grant SES-9710424 from the National Science Foundation.     

Petty corruption

This paper analyzes a petty corruption model in which the entrepreneur’s type is drawn from an absolutely continuous probability distribution function F over [0, 1], and perfect Bayesian equilibrium is adopted as the solution concept for a one-stage game. In the one-stage game, if there is more than one bureaucrat, no project is approved with a strictly positive probability. For an infinitely repeated game, I show that the single window policy strictly increases the social benefits in a socially optimal equilibrium. I would like to thank Mukul Majumdar for valuable guidance and encouragement. I am also grateful to Kaushik Basu, Fernando Vega-Redondo, an anonymous referee, seminar participants at the international meeting for public economic theory (PET07) and especially Ani Guerdjikova and Roy Radner for helpful comments. Thanks are due to Hideaki Goto and Eunkyeong Lee for useful conversation.     

Doctoral Origins of Contributors to the American Economic Review, 1960-72

Professor Sun concludes that publishing performance, adjusted for differences in the number of Ph.D.'s granted, is not a function of the quality of graduate schools. Larger institutions appear to have an advantage by turning out a larger number of Ph.D.'s, but no correlation was found when the number of contributors to the AER from a school was compared with the rating of its graduate programs.

Economics departments may hope to improve their rating in doctoral programs by producing more Ph.D.'s and encouraging them to contribute to the AER, Professor Sun concludes.     

Concordian Economics: Tools to Return Relevance to Economics

With the help of planes and solids, this paper presents an enlargement of the field of observation of economic theory. Through this transformation, the distribution of ownership rights to money and wealth assumes a central position in economic analysis. Thus social relevance is returned to economics. The validity of this operation is confirmed by the return of the millenarian field of economic justice to its traditional function as guidance to economic policy. The paper then presents four sets of economic rights and responsibilities that offer the potential of translating principles of economic justice into the complexities of the modern world.

Entwicklungshilfe,technischer Fortschritt und Terms of Trade

Ohne ZusammenfassungMit 3 TextabbildungenDieser Aufsatz ist der erste Teil einer Studie über Entwicklungshilfe und internationale Wirtschaftsbeziehungen, deren zweiter Teil unter dem Titel Wirtschaftliches Wachstum und Entwicklungshilfe — dargestellt an einem Harrod-Domar-Modell im nächsten Heft dieser Zeitschrift erscheint. Dort sollen insbesondere die mit der finanziellen Hilfe zusammenhängenden Probleme untersucht werden.Für wertvolle Anregungen danke ich Herrn Professor Dr. Bernhard Pfister, Frau Professor Dr. Utta Gruber, Herrn Dr. Anton Konrad und Herrn Dipl.-Vw. Franz Holzheu. Ganz besonders danken möchte ich meinem verehrten Lehrer, Herrn Professor Dr. Hans Möller, ohne dessen Rat und hilfreiche Kritik die Arbeit wohl kaum möglich gewesen wäre. Professor Möller und Professor Franz Gehrels (Indiana University) haben dankenswerterweise diese Fassung (bzw. die §§ 1–3) gelesen; auf Grund ihrer Kritik habe ich noch mehrere Umformulierungen und Ergänzungen vorgenommen.     

Inequality, Redistribution, and Economic Growth

This paper provides a critical review of the recent literature on inequality and growth. After discussing historical and more recent distributional trends as well as empirical evidence on the relationship between inequality and growth, I focus on recent explanations of the inequality-growth puzzle. I consider both the impact of the functional and the personal distribution on long-run growth rates. A final section discusses a rather neglected issue in the recent literature: the impact of expected demand for innovation decisions.     

Personhood and Human Richness: Good and Well-Being in the Capability Approach and Beyond

This paper aims at developing the Capability Approach's (CA) underlying philosophical anthropology and ethics by focusing on the work of its major exponents, Amartya Sen and Martha Nussbaum. I first discuss CA's critique of happiness as subjective well-being and defend the idea of ‘flourishing’ which ultimately refers to the Aristotelian concept of eudaimonia. I then focus on the notions of ‘good’ and ‘well-being’ and address the problem of the compatibility between a substantive notion of the Good (expressed through universal moral values) and individual preferences. I thus tackle the issue of adaptive preferences (which is investigated both from a methodological and an ethical perspective) and suggest that the process of adaptation should be thought in the dynamic frame of the constitution of the self. Therefore, in the second half of the paper I investigate the CA's idea of personhood and focus on some important assumptions behind its underlying anthropological model – above all the notion of ‘human richness’. As a result, I first point out the dynamic dimension of personhood, according to which individuals are ‘becoming themselves’ in search of self-realisation and construction of their identities. Second, I highlight its relational dimension, according to which every one is the expression of the anthropological richness and at the same time represents the highest possibility of richness for every other one.     

Stability of the arms race models

Conclusion We have derived stability conditions of the equilibria for the discrete linear and nonlinear Richardson and Cournot type oligopoly models of the arms race amongn nations, and clarified their implications in various ways.The earlier version of this paper was prepared while the author was at The Australian National University in early 1980, and read at Applied Mathematics Conference in February, 1980 at Cowes, Victoria, Australia. I am indebted to two referees of this journal for valuable comments and also to Professor D. D. Siljak for sending me his paper [5] which was instrumental in preparing this paper.     

Fiscal Policy in Real Time*

In this paper, I estimate the ex ante or intentional cyclical stance of fiscal policy in OECD countries. I use the fiscal plans reported at the time of budgeting, together with other information available to fiscal policy‐makers in real time. Indeed, fiscal plans might be significantly different from ex post outcomes because governments do not have complete control over their implementation, which is influenced by several exogenous factors. When fiscal‐policy rules are estimated using real‐time data, I show in this paper that OECD countries have often planned a counter‐cyclical fiscal stance, especially during economic expansions. This contrasts with conventional findings based on actual data, which tend to point towards a‐cyclicality or pro‐cyclicality. Forecast errors for the government structural balance and the output gap play a central role in explaining the differences between estimates based on ex ante and ex post data.     

On disequilibrium savings and public consumption

Conclusions A particular aspect of the present paper is the introduction of specific policy measures for the government, whose behavior on the goods market was described in earlier work as purely exogenous, like in Malinvaud. In our context, the government appears as an active economic agent, acting at absorbing any excess supply or reducing any excess demand on the goods market. Though this behavior may look somewhat arbitrary, it has the advantage to force the state of the economy towards a SME if combined with natural endogenous behavior of the other agents! Furthermore, it does not contradict observed policies through which governments stimulate or restrain economic activity via purchases or fiscal and monetary policies. Perhaps alternative policies, like direct actions on the labor market by supplying (non-productive) jobs or unemployment compensations, could have done as well: this remains an open door for further research. The preceding feature also contrasts with the recent work done by V. Böhm (1978) in a macroeconomic set up. In this paper, he studies the stability of stationary Keynesian unemployment or stationary repressed inflation states but without imposing a particular policy on the government. Comparing his work with ours, it is easily verified that if the government would keep its consumption at the levelg ^*, the SME would be stable if the economy starts out in Keynesian unemployment and unstable if the economy starts out in repressed inflation, confirming Böhm's result.Our analysis is related to an earlier work of Archibald and Lipsey (1958), dealing with the adjustment of the economy to a Stationary Equilibrium after a change in real balances. The Quantity Theory of Money postulates that along a SME, a change in the price and the wage rate from (p,w) to (p,w) leads to an adjustment in the level of stationary money holdings from m_i ^* to m_i ^*, m_i ^*=_i ^* (p,w). In this paper, Archibald and Lipsey suggest that the economy follows a sequence of temporary market equilibria: Starting from a change in real balances,prices adjust at each period through a tâtonnement process so as to match supply and demand. Our paper proposes an alternative path: At each period,quantities adjust through a tâtonnement process at constant prices.This paper is a revised version of CORE Discussion Paper 7701. We wish to thank Paul Champsaur, Jacques Drèze, Werner Hildenbrand and Reinhard John for stimulating discussions. We are grateful to Volker Böhm for valuable comments and criticisms.Research supported by the Fonds National Belge de la Recherche Scientifique.