Plans,disequilibria and macroeconomic policy simulations

In the paper some specific problems of applying a disequilibrium model of a centrally planned economy for policy simulation experiments are analysed. It is shown that a model in which demand, supply and plan output variables are simultaneously introduced can be used for policy simulation in a more effective way than a model which describes either demand or supply side of an economy. In the empirical part of the paper a disequilibrium-type model of the Polish economy is used for simulating alternative internal and external economic policies for 1971–80. It has been found that internal deflationary policies would have been relatively efficient in minimizing consumption excess demand at a given level of consumption output in the period investigated.     

我国城乡公共品供给竞争关系模型及政策建议

长期以来,城乡公共品供给状况的巨大差距,以及"城乡分治"的供给制度安排,深为社会各界所诟病,成为社会关注和讨论的焦点。文章构建了一个城乡公共品供给理论模型,揭示和反映城乡公共品之间的相对竞争关系,推导出公共资源在城乡间配置的均衡条件,并结合模型结论,提出进一步改善农村公共品供给的若干政策建议。     

Disentangling supply and demand shifts: the impacts on world salmon price

To understand price changes, one must determine the relative impact of supply and demand shifts on price. Conditional on predetermined supply and demand elasticities, we retrieve yearly shifts in regional supply and demand. The relative impact on price from each supply and demand shift is determined through an equilibrium displacement model (EDM). This procedure is applied on a yearly basis for the world salmon market in the period 2002 to 2011. The results indicate a large variation in demand and supply growth both over time and between regions. While average annual price impacts from supply or demand shifts from most regions are not statistically significant, price impacts from supply or demand shifts for specific periods are detected in all but one region. This indicates that the use of smooth trend indicators is likely to be inappropriate for measuring supply and demand shifts and their impacts on price. The procedure presented in this article can be a useful instrument for determining the relative impacts of supply and demand shifts on price in any market with unstable price behaviour.     

The rise of part-time employment in the great recession: Its causes and macroeconomic effects

During the Great Recession, the U.S. economy witnessed a substantial rise in part-time employment for a sustained period. We extend the New Keynesian unemployment model by Galí et al. (2012) to allow substitutions between full-time and part-time labor, and estimate the model’s parameters by using the Bayesian method. In our model, households and firms can optimally allocate full-time and part-time labor, and disturbances exist in part-time labor supply (household disutility from part-time labor) and part-time labor demand (firms’ efficiency to use part-time labor). As for the Great Recession, the initial increase in part-time employment at the outset of the financial crisis is mostly explained by the rise of the risk premia; the persistently high level of part-time employment in the later period is mainly explained by an exogenous increase in part-time labor supply. A part-time labor supply shock also explains a significant portion of slow recovery in the gross wage during the recession, as the shock lowers the part-time wage and the proportion of full-time workers in total employment. Notably, the results from our model suggest that though the transition from full-time to part-time jobs contributed to mitigating the sharp contraction in total employment and labor force during the Great Recession, it played only a limited role in relieving recessionary pressure.     

基于化解银行不良资产的通货膨胀策略研究

不良资产一般形成于经济高速增长时期,尤其是在通货膨胀时期及泡沫时期,而显露于经济低速增长时期和通货紧缩时期。通过计量模型实证检验分析,发现货币供应以Granger因果关系引起GDP的变动,从而表明历史货币有助于预测未来GDP,据此,提出了适度通货膨胀在增加名义GDP的情况下,可以化解银行不良资产的思路,并用模型实证这一结果的可能性。     

基于化解银行不良资产的利率手段实证分析

银行不良资产一般形成于经济高速增长时期,尤其是在通货膨胀时期及泡沫时期,而显露于经济低速增长时期和通货紧缩时期.通过计量模型实证检验分析,发现货币供应以Granger因果关系引起GDP的变动,从而表明历史货币有助于预测未来GDP,据此,提出了适度通货膨胀在增加名义GDP的情况下,可以化解银行不良资产的思路,并用模型实证这一结果的可能性.     

Free Banking in Hong Kong

Hong Kong has no central bank and its paper currency is issued by two private commercial banks. Cointegration tests and an error-correction model are used to examine the stability of the money supply process under pegged and floating exchange rates. Empirical evidence suggests feedback between the price level and money supply during the floating rate period but stability under a pegged rate. [E 42]     

US money supply and global business cycles: 1979–2009

This article investigates the effects of the US money supply shock on global business cycles by employing a global vector autoregressive model containing 26 economies over the period from 1979Q2 to 2009Q4. The US money supply is incorporated as an endogenous variable for the US and a global factor for other economies. When a positive US money supply shock hits the global economy, developed economies (such as the US, Euro area and the UK) will have neither real output decline nor inflation pressure, while China and some other developing countries are going to have a significant decline of real GDP. The international spillover of the liquidity effect exists. The global effects of quantitative easing are discussed as well.     

Contract enforcement in sellers' markets

I present an infinitely repeated game model where a monopolist seller has a contractual obligation with several buyers in each period. If a contract is violated the buyer can collect some compensation and impose a penalty on the seller. There are an infinite number of subgame perfect equilibria in this model, but I employ the concept of e-validated equilibrium to pick out a unique equilibrium outcome for the game where the seller is able to dominate the buyers. This model is clearly applicable to supply problems of Soviet-type economies, but it can explain certain phenomena of Western economies as well.     

A bivariate Hawkes process for interest rate modeling

This paper proposes a continuous time model for interest rates, based on a bivariate mutually exciting point process. The two components of this process represent the global supply and demand for fixed income instruments. In this framework, closed form expressions are obtained for the first moments of the short term rate and for bonds, under an equivalent affine risk neutral measure. European derivatives are priced under a forward measure and a numerical algorithm is proposed to evaluate caplets and floorlets. The model is fitted to the time series of one year swap rates, from 2004 to 2014. From observation of yield curves over the same period, we filter the evolution of risk premiums of supply and demand processes. Finally, we analyze the sensitivity of implied volatilities of caplets to parameters defining thelevel of mutual-excitation.     

How important is the credit channel in the transmission of monetary policy in Mexico?

This article empirically examines the importance of the credit channel of monetary policy in Mexico for the period 2004–2013. We estimate a vector autoregressive (VAR) model to analyse the effects of a monetary policy shock on real output, and we also use a threshold VAR model to investigate asymmetric effects of contractionary and expansionary policies. The empirical results suggest that a contractionary monetary policy results in a fall in the supply of loans together with an increase in the spread between the lending and deposit rate. To the extent that some borrowers are dependent on bank loans for credit, the reduced supply of loans amplifies the effects of monetary policy on output associated with the traditional interest rate channel. Our results also suggest that the importance of the credit channel is larger for contractionary shocks than for expansionary shocks.     

Dynamic adjustment of supply under Buyers' forced substitution

This paper presents a dynamic version of the static model analysed in Chapter 8 of Kornai (1980). A multi-commodity model is considered, where global excess supply prevails but excess demand persists for certain goods. It is assumed that the goods are storable, and the buyer purchases more than his demand fornon-shortage goods (he makes forced substitution) to satisfy his global demand.This paper investigates the seller's adjustment process and presents alternative assumptions for the supply, the demand, and the allocation rule under which the shortage disappears in a finite period of time.My indebtedness to J. Kornai is multi-sided: it was he, who formalized the theory: it was he, who created the underlying static model, finally the idea of the dynamic analysis is also due to him. I express my obligations to J. Kornai, B. Martos and an anonymous referee for their comments on an earlier version of my paper. Of course, I am alone responsible for any shortcomings of the model.     

Female labour force participation in an era of organizational and technological change

Abstract The supply of skilled female labour increased significantly at the beginning of the twentieth century as women assumed positions in the newly created clerical workforce. Evidence suggests that despite this increase in labour supply, the wage paid to female clerical workers increased over the period and that the ratio of female clerical wages to male manufacturing wages was roughly constant. These labour market facts can be accounted for in a dynamic general equilibrium model in which an exogenous increase in human capital induces an increase in demand for skilled clerical workers. While induced technological change that favours skilled workers may account for the observed increase in female real wages, explaining the stagnate relative weekly wages paid to female clerical workers requires a framework that includes organizational change.     

A recovery mechanism for a two echelon supply chain system under supply disruption

Supply chains are becoming increasingly competitive in order to meet customer demands. The task of optimizing highly evolved supply chains is not easy, especially when it is particularly sensitive to unexpected disruption. This paper presents a newly developed real-time recovery mechanism for a two stage serial supply chain system, consisting of one manufacturer and one retailer, where the production is disrupted for a given period of time during the production up time. The model is capable of determining the recovery schedule for the manufacturer and the retailer, and ensuring that the total relevant costs are minimized, while seeking to recover the original schedule by the end of the recovery time window. The model was solved using an efficient heuristic developed in this paper, which performed well in giving quality solutions within reasonable time. It can be shown that the optimal recovery schedule is dependent on the shortage cost parameters, as well as on the extent of the disruption. The presented model is useful to assist decision makers to take a pro-active approach for maintaining business continuity in the event of a disruption in the supply chain system.     

Monetary policy through the ‘credit-cost channel’: Italy and Germany pre- and post-EMU

We present an empirical analysis of the ‘Credit-Cost Channel’ (CCC) of monetary policy transmission. This channel combines bank credit supply and interest rates on loans as a cost to firms. The thrust of the CCC is that it makes both aggregate demand and aggregate supply dependent on monetary policy. As a consequence (1) credit market conditions (e.g. risk spreads) are important sources and indicators of macroeconomic shocks, (2) the real effects of monetary policy are larger and persistent. We have applied the Cointegrated Vector Autoregression (CVAR) econometric methodology to Italy and Germany in the ‘hard’ EMS period and in the European Monetary Union (EMU) period. The short-run and long-run effects of the CCC are detectable for both countries in both periods. Simulation of the estimated model also confirms that inflation-targeting by way of inter-bank rate control stabilizes inflation through structural shifts of the stochastic equilibrium paths of both inflation and the output.     

How do US credit supply shocks propagate internationally? A GVAR approach

We study how US credit supply shocks are transmitted to other economies. We use the recently developed GVAR approach to model financial variables jointly with macroeconomic variables in 33 countries for the period 1983–2009. We experiment with inter-country links based on bilateral trade, portfolio investment, foreign direct investment and banking exposures. Capturing both bilateral trade and financial exposures in a GVAR fits the data better than using trade weights only. We use sign restrictions on the short-run impulse responses in the US model to identify the credit supply shocks. We find that negative credit supply shocks have strong negative effects on US and foreign GDP. Credit and equity markets in several countries respond clearly to the shocks. Exchange rate responses are consistent with a “flight to quality” to the US dollar. The credit supply shocks explain about a fifth of one-year-ahead output forecast error variance in the US and about a tenth in the euro area and the UK, but considerably less elsewhere.     

Specification and estimation of a dynamic disequilibrium model

A disequilibrium model is considered, in which unsatisfied demand or supply in any given period carries over into the next period. An estimation procedure based on a LIML approach is then suggested.     

An analysis of price and output behavior in the Indian economy: 1951–1973

This article attempts to analyze the behavior of prices — absolute as well as relative — and real outputs in the Indian economy over the period 1951–1973. This is done in a general equilibrium framework through specifying a macro-econometric model of the economy, emphasizing the supply constraints arising from the agricultural sector and the foreign sector. The model equations are estimated through two stage least squares estimation procedure, using annual data for the period 1951–1973. The impact of fluctuations in agricultural output and foreign exchange shortages on prices and outputs in the economy is explored within the model framework.     

Real wage determination in Bangladesh agriculture: An econometric investigation

Thsi paper develops and estimates a real wage model for the agricultural sector in Bangladesh for the period 1973:2–1985:4. The model is developed within the framework of the market theory of labour demand and labour supply. The empirical results are supportive of the market theory of wages.     

WELFARE COST OF AN OIL IMPORT FEE

This paper examines the impacts on the US. oil market of a $5-per-barrel tariff on imported crude oil. The analysis shows that the United States currently is a price taker in the world oil market. This means that "optimal tariff" arguments for an oil import fee have no validity. The author also argues that any economic losses that oil supply disruptions generate are better addressed with alternative policy tools. To forecast the effects of the tariff on US. production, the author uses a domestic oil supply model that she developed elsewhere. She calculates the resulting gains in producer surplus and then combines them with an estimate of consumer surplus losses and government revenues so as to yield an estimate of the tariff's welfare cost. This welfare cost amounts to approximately $17 billion (in present-value terms) over the 1988–1998 period.