Dynamic factor demands and market structure under rational expectations: some estimates for the Italian manufacturing system

This paper deals with a dynamic model of the behaviour of firms under rational expectations. The adjustment cost framework is followed to describe production technologies. The objective of firms is to maximize the stream of future profits under rational expectation. First-order conditions for the optimum are derived with respect to input demands and one output supply. The output market structure is modelled in order to test price taking behaviour. The adjustment costs of quasi-fixed inputs are internal and interrelated. The model is estimated for the Italian manufacturing system with encouraging results.     

Unemployment Expectations: The Impact of Private Information on Income Uncertainty

The formation and accuracy of unemployment expectations are investigated in this paper. Unemployment expectations were found to contain predictive information that was not captured by past trends in unemployment and other economic variables. The predictive content of expectations was based on private information about future unemployment and overall economic prospects. The data indicated a greater consistency with the rational expectations hypothesis than with adaptive, extrapolative, and error-learning models, although households did not optimally use all available information. The data indicate that unemployment expectations are to an important extent derived from more general expectations about the future performance of the economy.     

Targets and lags in a two-equation model of US stabilization

A simple model of activist macroeconomic policy derives a reaction function by assuming that rational governments have performance objectives, but are constrained by the Phillips curve. Although not formally modeled, governments apply a variety of instruments to influence inflation and output, in addition to monetary policy these include fiscal policy, bailouts and exchange rates. Our econometric results are generally consistent with US economic history. One qualification is that governments appear more likely to target growth rates than output gaps. Another inference is that inflation expectations are more likely to be backward than forward looking; a variety of rational expectation models fit the data less well than do simple inertial expectations. We also find that annual data series are more appropriate than quarterly ones for studying these issues.     

基于省际面板数据的房地产市场非均衡实证分析

本文从25个省际数据出发,通过建立3个不同特征的面板模型,考察房地产价格对房地产市场非均衡的影响及其省际差异。由于行业本身特征与公共政策的时滞效应,未来控制的方向在于正确引导消费者对价格的理性预期,建立与完善经济预警机制.     

Rationalizing the Political Business Cycle: A Workhorse Model

An incumbent policymaker has incentives to expand the money supply prior to elections to stimulate the economy and thereby further her chances of re-election. In its original formulation, the Nordhaus political business cycle hypothesis relies on adaptive inflation expectations and naive retrospective voting.
This article develops a simple model of a political cycle in inflation and output growth, assuming rational inflation expectations and rational retrospective voting. Voter scrutiny of the incumbent's economic performance has policy and selection effects, with ambiguous consequences for welfare: the policymaker manipulates the money supply for electoral purposes, but an incumbent of above average quality is more likely to remain in office.     

Exchange rate expectations and economic policy uncertainty

This study provides a new angle on the relationship between political decisions and exchange rates. We link a conventional exchange rate modeling approach to the literature on the political economy of exchange rates and studies dealing with the role of policy announcements for financial market expectations by addressing the impact of policy uncertainty on exchange rate expectations and forecast errors of professionals. Our results show that expectations are not only affected by announcements but also by the degree of uncertainty regarding the future stance of economic policy. We find that forecast errors are strongly affected by policy uncertainty compared to expectations, suggesting that the effect of uncertainty is not efficiently accounted for in market expectations. Our main findings hold for economic policy uncertainty, fiscal policy uncertainty and monetary policy uncertainty. In addition, the estimates for the Japanese yen suggest a safe haven role of the yen since higher policy uncertainty in the US results in an expected appreciation of the yen.     

Images of economic conditions in West Germany

With data from a December 1982 survey determinants of attitudes on general and personal economic conditions in West Germany are investigated. Such attitudes are differentiated into perceptions, evaluations, and expectations. Objective private living conditions, social background variables, regional economic context, and partisan affiliations are introduced as explanatory variables. Stepwise regression analysis is applied to estimate recursive models for endogenous variables. Apart from sizeable interrelations among components of individuals' images of economic conditions the findings indicate that evaluations and expectations of the private economic situation are strongly affected by social background and personal living conditions, whereas partisan sympathies mainly influence expectations of future general economic development.     

On the neutrality of fiscal policy

The paper explores the relationships between fiscal policy and real economic activity and prices for the six largest industrialized economies. Fiscal policy variables are shown to be consistent and rational functions of the behaviour of the economy. It is also confirmed that fiscal policy seems to have a consistent impact on subsequent real economic activity and prices. When multivariate time series analysis is used to breakdown overall fiscal policy into anticipated and unanticipated components, the anticipated components are shown generally to have just as much forecasting ability for subsequently realized economic variables as the unanticipated components. This does not appear to be consistent with the implications of pure rational expectations models.     

The government behavioural constraint in rational expectations models

Models with rational expectations typically include state variables whose values are controlled by the government. Hence, the need to specify behavioural rules for the authorities. Our purpose is to show, in the context of a well-known Cagan type model of the demand for money, that the assumption of rational expectations imposes the hitherto neglected requirement of rationality of the postulated behaviour of government. In particular the occurance of non-unique solutions highlights the need for a rational choice between these on grounds other than mathematical convenience or ad hoc economic assumptions of minimum variance, terminal conditions etc.     

Involuntary saving through unanticipated inflation: Some further empirical evidence

In a recent paper Deaton formulated a novel disequilibrium theory of saving behaviour. The essence of his hypothesis is that individual consumers have no possible means of distinguishing relative from absolute price changes. This hypothesises subject to further empirical testing in our note. Using data for Canada, Japan, the United Kingdom and the United States we re-examine the hypothesis assuming either static, adaptive, extrapolative or rational price and output expectations.     

The influence of learning and price-level targeting on central bank forward guidance

This paper examines how the effectiveness of central bank forward guidance depends on two key channels: the expectations formation process and the monetary policy regime. The results show that rational expectations relative to an adaptive learning rule amplifies the positive benefits a price-level targeting central bank creates for forward guidance. Specifically, forward guidance generates greater amounts of output and inflation under a price-level than inflation targeting monetary policy regime, but rational expectations overstates these positive benefits compared to adaptive learning. The different responses of expectations between rational expectations and adaptive learning to forward guidance are driving this performance gap. Thus, policymakers should consider how expectations are modeled if forward guidance and price-level targeting are implemented in an economy.     

Robust control and central banking behaviour

This paper seeks to explain the recent behaviour of the two main central banks in the recent financial crisis, applying a robust control tool through a Neo-Keynesian monetary policy model. The direct forbearer of this paper is the Giordani and Söderlind (2004) study. It begins with the origin, purpose and theoretical grounds of robust control, indicating that it is one way to face model uncertainty, as an alternative to the Bayesian approach. In the middle section, we seek to obtain the course of the model's main variables: interest rates, inflation and output. The model constructor also wants the participating agents to have the same doubts that he has regarding its validity; therefore, robust control is considered as a “fine-tuning” of the rational expectations approach. The impulse-response functions are obtained, with the monetary authority acting as a Stackelberg-type leader, affected by a perturbation on the supply side. The two relevant equilibria are obtained and compared in robust control with dynamic economy (the reference equilibrium and the worst possible case equilibrium) with that obtained when operating with rational expectations. The alternative course for the reference model set forth in the paper by Dennis (2008) is also analysed. We mainly find that the different results depend on the behaviour of the law of motion of the state variables, specifically the shadow prices that influence the private sector's expectations. Lastly, the paper relates the recent monetary policy performance when facing the financial crisis that began in the summer of 2007.     

Erratic monetary policy and the dispersion of commodity prices

This paper develops a closed economy macroeconomic model with many goods, where information flows are not instantaneous. Economic agents form rational expectations of future economic variables based on present information, and measure the future price level with a true cost-of-living index that allows for substitutions among commodities as relative prices change. The major inference drawn from our model is that, when information flows are imperfect, an increase in the variance of the money supply injects noise into economic agents forecasts of prices, and increases the equilibrium level of dispersion in commodity prices.     

Geography,demography, and economic growth in Africa

This paper presents the effects of climate, topography, and natural ecology on public health, nutrition, demographics, technological diffusion, international trade and other determinants of economic development in Africa. The goal of this paper is to emphasize the need for intensified research on the issues at the intersection of ecology and human society. Geography was given emphasis because of three reasons: the minimal gain from another recitation of the damage caused by statism, protectionism and corruption to African economic performance; negligence of the role of natural forces in shaping economic performance; and tailoring of policies to geographical realities. The paper also discusses the general problems of tropical development and the focus of Africa's problems in worldwide tropical perspectives; demographic trends in Africa; use of standard cross-country growth equations with demographic and geographic variables, to account for the relative roles of geography; and the future growth strategies and the need for urban-based export growth in manufacturing and services. Lastly, the authors provide a summary of conclusions and discuss the agenda for future research.     

Public debt and economic growth: what do neoclassical growth models teach us?

This paper aims to quantify the crowding-out effect of public debt and the related loss in long-run output in neoclassical growth models. To accomplish this task, we incorporate the government sector into the Ramsey–Cass–Koopmans (RCK) model, the Blanchard model and the Solow model, which differ only in their assumptions concerning the consumption behaviour of households. We also introduce a general framework that is capable of gauging the burden of public debt in a neoclassical world in the case of any type of consumption behaviour. Our results are threefold. First, contrary to the RCK model, public debt reduces long-run output in the Blanchard model and the Solow model, although to a different extent: the crowding-out effect is marginal in the former, whereas it can be very large in the latter. Second, the burden of public debt is country-specific depending crucially on the saving rate and the population growth rate. Finally, in developed countries the upper limit of the output loss related to public debt is moderate at best even if distortionary taxes are taken into account.     

Hayek and Keynes: From a common critique of economic method to different theories of expectations

The methodological positions of Hayek and Keynes contain striking similarities. Both authors opposed empiricist approaches to economics that assign priority to mere observation as the source of knowledge. Both emphasised intentionality, motivation and human agency. Notwithstanding this common ground, they had different conceptions of how beliefs are formed and had different explanations of thought and action in economics. Hayek grounded his explanation on an evolutionary theory of the mind, i.e. on psychological premises, whereas Keynes based his view of belief formation on probable reasoning, where probability is a logical concept. Starting from psychological premises Hayek maintained that individuals act rationally only by following rules. As a consequence, he considered conventional expectations to be the primary guide for agents in economic life. Keynes agreed that conventional expectations actually guide economic behaviour, but he maintained that they are justified only in situations of total ignorance. In conditions of limited knowledge, agents can base their action on reasonable expectations, independently of conventions. Moreover, agents?particularly those institutions responsible for economic policy?ought to shun conventional behaviour in order to counteract its negative social consequences. We argue that Keynes's theory of expectations is well grounded upon his theory of logical probability. Hence his advocacy of discretionary policy is rationally justified.     

A new classical econometric model of the world economy

The widespread recognition of international interdependence and the desire for better coordination of economic policies among national entities has motivated, during the past decade, attempts to build, improve, and operate a large number of linked multicountry models. In this paper we describe the structure and properties of the Liverpool world model, a rational expectations model with endogenous capital flows and exchange rates. The key difference between the Liverpool world model and most other multicountry models currently in use is the imposition of rational expectations and the modelling of wealth effects; other changes, such as equilibrium wage/price equations and perfect capital mobility are also important and do make differences in either dynamic behaviour or impact effects, but with or without them the model exhibits behaviour that is of the ‘New Classical’ type.     

Inflation Dynamics in the Euro Area and the Role of Expectations

This paper examines the empirical performance of the New Keynesian Phillips curve and its hybrid specification in the euro area. Instead of imposing rational expectations, direct measures, i.e. OECD forecasts, are used as empirical proxies for economic agents’ inflation expectations. Real marginal costs are proxied by three alternative measures. The results suggest that once the rational expectations hypothesis is relaxed and directly measured expectations are used, the European inflation process can be modeled using the forward-looking New Keynesian Phillips curve. However, when allowing for possible non-rationalities in expectations, inflation can be modeled more accurately by the hybrid Phillips curve with the additional lagged inflation term. In this approach, output gap turns out to be at least as good as labor income share as a proxy for real marginal cost. Moreover, the inflation process seems to have become more forward-looking in the recent years of low and stable inflation.The views expressed are those of the author and do not necessarily reflect the views of the Bank of Finland. Special thanks are due to the editor, two anonymous referees, Juha Tarkka, Jouko Vilmunen and Matti Virén for useful comments. I am also grateful to David Mayes and Geoffrey Wood for helpful suggestions and to Heli Tikkunen for excellent research assistance. For their constructive comments, I would also thank participants in the conference on the Eurosystem Inflation Persistence Network at the ECB, which was held in Frankfurt in December 2003.     

Public infrastructure,production organization,and economic development

We develop a political economy model of growth to examine economic development led by the interactions between an economic decision concerning a firm’s production technology (CRS vs. IRS technology) and a political decision concerning public infrastructure. We show that multiple equilibrium growth paths occur due to differences in expectations regarding the quality of public infrastructure. These multiple paths illustrate why economies with poor initial conditions can catch up to and, furthermore, overtake economies with better initial conditions. Our result could explain the experiences of some East Asian countries where the co-evolution of public infrastructure and industrial transformation spurred economic development.     

Learning in expectation formation with applications to cattle and beef exports

The paper briefly considers problems associated with rational expectations and formulates a more general model which allows for situations where economic agents do not immediately arrive at a fully rational solution. It incorporates a learning mechanism whereby agents can provisionally adopt hypothetically-derived expectations as a basis for comparison with the actual outturns. Utilizing the resultant past expectational errors as indicators of the likelihood of prospective future outcomes, agents make explicit allowance a rational solution. Thus, in situations where complete information is not freely available, rationality would be approximated over time by means of a dynamic learning process which is founded on a firm empirical approach. This essential empiricism requires that the problem be examined on the basis of direct observation of applied situations. Therefore the method is implemented and analysed with reference to Irish foreign trade in fat cattle, carcase and processed beef. Simultaneous equation models are specified for each of these markets and are tested econometrically for the period 1974–83. The results obtained indicate that the originally-derived estimates of rational expectations did not prove significant, while learning expectations overall mostly did so. In particular the expectational errors were highly significant where the markets were most volatile, i.e. in those for fat cattle and carcase beef.