Price clustering and natural resistance points in the Dutch stock market: A natural experiment

This paper focuses on the tendency of stock prices to cluster at round numbers (like 10, 20, 30, etc. and to a lesser extent 5, 15, 25, etc.) and the related effect of round number price barriers (prices pass round numbers less frequently than other numbers). Two competing hypotheses are tested, using data from the Dutch stock market of the period 1990–2001. After 1 January 1999 stock prices were listed in euros, while guilders were still the currency of daily life until 2002. The aspiration level hypothesis predicts that round number effects in guilders will only slowly disappear. The odd price hypothesis predicts an abrupt change in round number effects after 1 January 1999. Generally, the results are consistent with the odd price hypothesis.     

Channels of transmission of environmental policy to economic growth: A survey of the theory

Economists generally hold that environmental regulations impose constraints on the production possibilities set and are therefore potentially harmful to economic growth. In recent years, however, it has been recognized that environmental regulation can enhance the prospects for growth if improved environmental quality increases the productivity of inputs or the efficiency of the education system. It is also held that environmental regulation promotes pollution abatement activity and can lead to the exploitation of increasing returns to scale in abatement. Furthermore, expectations of a better environment may encourage households to save. Finally, it has been conjectured that environmental regulations can stimulate innovation because R&D is a relatively clean activity and because the market share of clean innovations increases. Future empirical research should shed light on the relative importance of these different channels of transmission of environmental policy to the growth rate of the economy.     

大学生网络成瘾与父母教养方式的关系研究

科技飞速发展的今天,网络已成为社会中不可或缺的工具。分析研究大学生网络成瘾与父母交往方式之间的关系,主要采用KimbedyYoung的网络成瘾判断、网络成瘾程度自测调查、父母教养方式评价量表、自制基本信息调查等问卷进行测评,同时结合个别访谈的形式。认为父母教养方式对大学生网络成瘾行为具有一定的影响。     

Schumpeterian endogenous growth theory and evolutionary economics

In this paper, we aim to discuss whether Schumpeterian models of endogenous growth can accommodate Schumpeters vision of development through creative destruction. Taking a methodological approach, our focus is on individual decision-making, technology, general equilibrium and welfare, and steady state dynamics as the fundamental principles underlying endogenous growth theory. In particular, the Aghion-Howitt model of Schumpeterian growth in various extended versions is analyzed in the light of Schumpeters work. Therefore, we also try to root Schumpeters work in historical context. We find endogenous growth theory far from carrying Schumpeters idea of an evolutionary approach to change and development. Rather the emergence of numerous models of an evolutionary type can be observed to provide for the formal structure appropriate to keeping Schumpeters legacy alive.JEL Classification: B1, B2, B4, O3, O4Corespondence to: Thomas Kuhn     

Financial institutions and the Cambridge theory of distribution

This paper shows how the Cambridge theory of distribution isaffected by the nature of financial intermediation. When creditmarkets are akin to loanable funds markets in which lenderstransfer resources to borrowers, the Cambridge theory holdsand steady-state income distribution is independent of workers'saving behaviour. However, when credit markets embody endogenouslygenerated bank money, the Cambridge theory does not hold. Financialinstitutions and endogenous money therefore matter for long-runsteady-state outcomes, just as they do for short-run macroeconomicoutcomes.     

Efficiency, depth and growth: Quantitative implications of finance and growth theory

We develop a parsimonious finance and endogenous growth model with microeconomic frictions in entrepreneurship and a role for credit constraints. We demonstrate that though an efficiency–growth relation will always exist, the efficiency–depth–growth relation may not. This has implications for the connection between the theory and empirics of finance and growth. We go on to ask whether the model can account for some historical trends in growth, financial depth and financial efficiency for the UK over the period 1850–1913. The best model of finance and growth is one that departs from the standard depth–growth link.     

The challenge of akrasia for the theory of rational choice

The phenomenon of akrasia, in which an actor makes a choice she regrets even while choosing it, appears problematic for theories of rational choice, which assume that an agent prefers any chosen course of action. The apparent possibility of akratic action presents a challenge to rational choice theorists, either to demonstrate that it is illusory or to show that akratic action does not violate the axioms of rational choice. The problematic status of akrasia is exhibited most sharply when set against the backdrop of praxeology. Therefore, this paper will explore whether the idea of akratic action can be reconciled with the fundamental principles of praxeology.

Monetising the Classical Equations: a theory of circulation

The Classical Equations describe output and income in real terms.To use them to analyse aggregate demand, the transactions theydescribe must be ‘monetised’. A sum of money equalto the wage bill of the capital goods sector can be shown tobe necessary and sufficient to carry out all transactions, ina process of circulation which also defines an expression forvelocity. When money has intrinsic value, the quantity approachmay hold in the short run but, in the long run, money will beendogenous. In these conditions, the rate of interest will bedetermined by the supply and demand for reserves, but when moneyis purely nominal, only a minimum rate will be fixed, and therate of interest will have to be pegged. The Appendix developsthe Classical Equations and shows that they define an invariableunit of account.     

高职学生网络成瘾成因分析及其干预措施研究

伴随我国网络用户群的增长,有关网络的各种影响问题也越来越受社会、学校、家长的关注,网络成瘾已成为影响高职学生成长的重要因素。通过对高职学生网络成瘾的因素分析,提出针对高职学生网络成瘾的预防与干预措施,对高职学生完成学业健康成长有着重要的意义。     

Does modern endogenous growth theory adequately represent Allyn Young?

Endogenous growth theory is now fashionable. It seeks to explainwhy per capita income growth in capital abundant countries isoften faster than in capital poor countries and defies the operationof diminishing returns. This theory, which took off with Romerand Lucas, often makes Allyn Young's concept of increasing returnsand Marshall's distinction between internal and external economiesits starting point but considers their treatment of the subjectas not sufficiently rigorous. The modern endogenous growth theoriststhen claim to explain what they had in mind with greater clarity,rigour and depth. This paper argues that this is not the caseas these theorists actually misrepresent Young in importantways.     

A model of endogenous political party platforms

Summary. We develop a model of endogenous party platform formation in a multidimensional policy space. Party platforms depend on the composition of the parties primary electorate. The overall social outcome is taken to be a weighted average of party platforms and individuals vote strategically. Equilibrium is defined to obtain when no group of voters can shift the social outcome in its favor by deviating and the party platforms are consistent with their electorate. We provide sufficient conditions for existence of equilibria.Received: 20 November 2002, Revised: 21 August 2003JEL Classification Numbers: D72, C62.Correspondence to: Ignacio Ortuño-OrtínWe thank A. Caplin, S. Chattopadhyay, C. Martinelli and J. D. Moreno-Ternero and two anonymous referees for helpful comments. This research started while Ortuño-Ortín was a visitor in the Department of Economics at NYU; he thanks for the kind hospitality of this institution. F. Marhuenda and I. Ortuño-Ortín gratefully acknowledge financial support from the Spanish Ministry of Science and Technology Project BEC2001-1653 and Project BEC2001-0980, respectively; A. Gomberg gratefully acknowledges the financial support from the Asociación Mexicana de Cultura.     

Exogenous and Endogenous Attention and the Convergence of Analysts’ Forecasts

The propensity of the forecasts of sell-side financial analysts to converge (or diverge) is a function of their exogenous and endogenous selective attention and overconfidence. When returns are negative, the endogenous form of selective attention—a static measure of analysts’ goal-driven attention at a particular point in time—has a positive association with convergence. The exogenous form of selective attention—a relatively involuntary dynamic process of exogenous attentional shift driven by external changes in the market over time—is associated with a tendency for forecasts to diverge.     

Scale effects in endogenous growth theory: an error of aggregation not specification

Modern Schumpeterian growth theory focuses on the product line as the main locus of innovation and exploits endogenous product proliferation to sterilize the scale effect. The empirical core of this theory consists of two claims: (i) growth depends on average employment (i.e., employment per product line); (ii) average employment is scale invariant. We show that data on employment, R&D personnel, and the number of establishments in the US for the period 1964–2001 provide strong support for these claims. While employment and the total number of R&D workers increase with no apparent matching change in the long-run trend of productivity growth, employment and R&D employment per establishment exhibit no long-run trend. We also document that the number of establishments, employment and population exhibit a positive trend, while the ratio employment/establishment does not. Finally, we provide results of time series tests consistent with the predictions of these models.     

A solution to the Lucas–Uzawa model with increasing returns to scale: Note

Chilarescu [2008, An analytical solutions for a model of endogenous growth, Economic Modelling.] claims that he determines a solution path to the Lucas–Uzawa model with increasing returns to scale. However, the path is not a closed-form since it depends on the initial consumption and the initial time for goods production, that are unknown. Moreover, the production function is nonconcave and then the first order conditions and the transversality conditions are not sufficient for the optimality. This note converts the model to a problem in which the Hamiltonian is available and derives a fully-closed form solution.     

Testing tariff endogeneity in Japan: A comparison of pre- and post-war periods

This paper tests an endogenous tariff model for Japan (1890–1970). Using a vector autoregression (VAR), I find that tariff changes are endogenous in the post-war period. Rather than being designed to promote economic activity, this suggests that tariffs respond to macroeconomic disturbances.     

Thermodynamic implications for natural resource extraction and technical change in U.S. copper mining

Motivated by the lack of integrated approaches that do justice to both the thermodynamic and economic aspects of natural resource use and the lack of empirical studies combining the two disciplines, this paper provides an integrated framework for the valuation of technologies, substitution and technical change. The paper determines empirically the relationships between thermodynamic states of materials and the use of high-quality energy sources for the case of copper mining in the United States. The empirical analysis provides the basis for a nonlinear dynamic simulation of optimal resource extraction and endogenous technical change in the light of changing resource quality. The study assesses the potential for future improvements in U.S. copper mining.     

基于组织生态学的职业迁移理论研究综述

随着组织生态学的发展以及其对劳动就业问题的渗透,基于组织生态学视角的职业迁移理论得到发展,外部机会构成在预测职业迁移的可能性与倾向性方面具有重要作用．职业迁移是外部机会构成与个人现有工作环境的比较形成的,有关二者的比较研究应是未来职业迁移问题的一个重要研究方向。     

Rate of profit and interest in a growth theory with endogenous money

This paper attempts to incorporate an endogenous money approachinto post-Keynesian growth theory in order to derive the fullemployment equilibrium rate of interest as well as that of profit.This rate of interest, named the ideal rate of interest, differsfrom the rate of profit in that it is in proportion to a monetaryvariable, not a real variable. Further, the rate of profit alsodiffers from the rate of interest as a premium because it isproductive. The rate of interest could be important in explainingcircumstances in which financial capital has been accumulatedin excess.     

A note on parental and child risk valuation

The paper develops a model that allows the estimation of parent’s valuation of own and child health, in an endogenous risk framework, where parents can employ multiple activities to protect themselves and their children from a health risk. These risk-reducing activities may differ in their effectiveness and their intensity of use. We suggest how to estimate the parent’s ex ante marginal willingness-to-pay for a reduction in the ambient level of health risk, unencumbered by expected utility terms.