New Keynesian dynamics in a low interest rate environment

Recent research has found that the dynamic properties of the New Keynesian model are unorthodox when the nominal interest rate is zero. Improvements in technology and reductions in the labor tax rate lower economic activity and the size of the government purchase output multiplier is very large. This paper provides evidence that these results are not empirically relevant. We show that a prototypical New Keynesian model fit to Japanese data exhibits orthodox dynamics during Japan's episode with zero interest rates. We then demonstrate that this specification is more consistent with outcomes in Japan than alternative specifications that have unorthodox properties.     

PRODUCTIVE GOVERNMENT EXPENDITURE AND ECONOMIC GROWTH

Abstract.  We provide a comprehensive survey of the recent literature on the link between productive government expenditure and economic growth. We show that an understanding of the core results and the ensuing contributions can be gained from the study of their respective Euler equations. We argue that the existing literature incorporates many relevant aspects; however, policy recommendations tend to hinge on several knife-edge assumptions. Therefore, future research ought to focus more on idea-based endogenous growth models to check the robustness of policy recommendations. Moreover, the inclusion of hitherto unexplored types of government expenditure, e.g. on the 'rule of law', would be desirable.     

Assessing Ricardian Equivalence

This paper reviews the literature on Ricardian equivalence. This hypothesis may be interpreted as a generalization to the short and the long run of the theories that put no weight on the real effects of public policies on aggregate demand. We argue that Ricardian equivalence relies on both the permanent income hypothesis and the fulfillment of the intertemporal government budget constraint. The theoretical literature emphasizes several reasons for departures from this hypothesis. However, the empirical literature is inconclusive. When Ricardian equivalence is tested in a life–cycle framework the hypothesis is usually rejected, while when the empirical analysis is based on optimizing models, it is usually accepted.     

住房自有率与城市蔓延：理论与实证

通过构建一个包含住房租赁市场的封闭、单中心城市一般均衡模型,模型化了住房自有率与城市蔓延之间的关系,理论模型结论显示：首先,与自有住房者相比,租房者倾向于居住在离市中心较近的地方;其次,住房自有率的提高会使城市空间面积扩大,加剧城市蔓延。进一步,利用地级市数据分别对理论命题结论进行了检验,在比较充分地控制内生性问题后,实证结果证实了高住房自有率会加剧城市蔓延。因此,长期以来我国不断升高的住房自有率也是加剧我国城市蔓延的重要原因。     

THE THEORY OF ENDOGENOUS MARKET STRUCTURES

Most market structures are neither perfectly or monopolistically competitive: they are characterized by a few large firms that are engaged in strategic interactions in their production and investment decisions and whose number is endogenous. The theory of endogenous market structures analyzes markets in partial and general equilibrium where strategies affect entry and entry affects strategies, and exogenous primitive conditions on technology and preferences affect the equilibrium. We discuss applications to industrial organization, international trade, business cycle theory, international finance, growth and implications for welfare and for competition, trade, fiscal and monetary policy.     

Volatility, growth, and welfare

This paper constructs an endogenous growth model driven by self-fulfilling expectation shocks to explain the stylized fact that the average growth rate of GDP is related negatively to volatility and positively to capacity utilization. The implied welfare gain from further stabilizing the U.S. economy is about a quarter of annual consumption, which is consistent in order of magnitude with estimates based on the empirical studies of Ramey and Ramey (1995) and Alvarez and Jermann (2004). Hence, policies designed to reduce fluctuations can generate large welfare gains because smaller fluctuations are associated with permanently higher rates of growth.     

Fiscal forecasting performance in an emerging economy: An empirical assessment of Brazil

This study makes use of Brazilian data to analyze government budget balance forecast errors. Besides the analysis of the quality and efficiency of budget balance forecasts, economic, political, and institutional and governance dimensions are explored. The findings show that the data forecasts have low quality and efficiency. Furthermore, it is observed that the budget forecast error is subject to a backward-looking effect, a bias in the economic growth forecasts, as well as cyclical fluctuations. Finally, electoral cycles represent a source of overestimated forecasts, and strong institutions and governance supported by the public are able to suppress opportunistic motivations in budget forecasts.     

Optimal fiscal and monetary policy with occasionally binding zero bound constraints

This paper studies optimal fiscal and monetary policy when the nominal interest rate is subject to the zero lower bound (ZLB) constraint in a stochastic New Keynesian economy. In the baseline model calibrated to match key features of the U.S. economy, it is optimal for the government to increase its spending when at the ZLB in the stochastic environment by about 60 percent more than it would in the deterministic environment. The presence of uncertainty creates a unique time-consistency problem if the steady state is inefficient. Although access to government spending policy increases welfare in the face of a large deflationary shock, it decreases welfare during normal times as the government reduces the nominal interest rate less aggressively before reaching the ZLB.     

ON THE EFFECTIVENESS OF FISCAL POLICY AS AN INSTRUMENT OF MACROECONOMIC POLICY

This paper demonstrates that fiscal policy is an effective and essential instrument of stabilisation macroeconomic policy. This is particularly so if it is co-ordinated with monetary policy, especially in the current worldwide economic situation.     

Assessing Ricardian equivalence for the New Member States: Does debt-neutrality matter?

Using a structural model based on dynamic optimizing agents, we empirically test the Ricardian equivalence proposition (REP) for 11 New EU-Member States (NMS). We extend the basic model by including the government budget constraint, thus being able to evaluate whether individuals take the evolution of public debt into account. In the basic setting we cannot reject the validity of the REP for four NMS, in the extended model the relevance of the REP changes for six countries, implying that the development of government debt and long-term sustainability of public finances matters with regard to the validity of the REP.     

ON THE INEFFECTIVENESS OF FISCAL POLICY AS AN INSTRUMENT OF MACROECONOMIC POLICY

Spending depends on the quantity of money. If an increase in the budget deficit is financed by sales of government debt to non-banks, the quantity of money is unchanged and public borrowing 'crowds out' private spending. But – if the government finances its deficit (or buybacks of existing debt) from the banks – the quantity of money, and hence spending and national income increase.     

VARIATIONS ON THE THEME OF CONNINGa IN MATHEMATICAL ECONOMICS

Abstract The mathematization of economics is almost exclusively in terms of the mathematics of real analysis which, in turn, is founded on set theory (and the axiom of choice) and orthodox mathematical logic. In this paper I try to point out that this kind of mathematization is replete with economic infelicities. The attempt to extract these infelicities is in terms of three main examples and one general discussion: dynamics, policy and rational expectations and learning are the examples; a game theory without ‘subjectivism’, based on the axiom of determinateness, is discussed in general terms. The focus is on the role and reliance of standard fixed‐point theorems in orthodox mathematical economics.     

THE EFFECTS OF DISCRETIONARY FISCAL POLICY ON MACROECONOMIC AGGREGATES: A REAPPRAISAL

Abstract Fiscal stimuli to recover? A cascade of academic and layman articles debate the effectiveness of fiscal policy in stimulating the economy backed up by different economic models and empirical support. This paper surveys the theoretical predictions and recent empirical vector autoregression evidence on the short‐run effects of discretionary fiscal policy on macroeconomic aggregates.