Labour force and land distributional effects of agricultural technology: A case study of coffee

Land reform frequently refers to government policies which expropriate large farms and fragment them into smaller units; however, land reform can also refer to the opposite process, that of consolidation of farms which are too small for efficient production. In the latter sense, that of land consolidation, land reform may or may not be socially desirable and prompt government intervention. Possible gains in efficiency accruing from land consolidation may not be desirable if it entails agricultural unemployment and accelerated rural-urban migration, in which case governments may try to intervene. This paper looks at land reform in the context of one crop, coffee. New techniques of coffee cultivation will increase output-labour, output-land and labour-land ratios, offering the prospect for higher coffee employment and output. However, economic and institutional barries will preclude higher output; as a result coffee employment and small coffee farms will be threatened. This paper examines the economic implications of the new coffee technology in the context of Columbia.     

How much slack was there in the Chinese economy prior to its economic reform of 1978?

The existence of economic slack or inefficiency is a common phenomenon of economies that operate under mandatory central planning. It implies that the economy operates in the interior of its set of production possibilities and not on its frontier. It also implies that output can be increased without any increase in the inputs if the constraints which prevent the economy from operating on the frontier in the first place are removed. Thus, there is “surplus potential output” that is not directly observable and cannot be identified by conventional analysis of the relationship between inputs and output alone. The objective of this study is to attempt to identify and estimate the surplus potential output in the Chinese economy prior to its economic reform in 1978. This will help answer the question of how much of the Chinese economic growth since 1978 can be attributed to the reduction and elimination of the pre-existing economic slack. This question is important because the increase in output due to the reduction or elimination of the economic slack can only take effect once and cannot be continuing. It will also affect the attribution of the sources of Chinese economic growth. Our investigation suggests that a reasonable estimate of the magnitude of the surplus potential output of the Chinese economy on the eve of its reform is approximately 50% of the actual realized output in 1978.     

COVID-19 pandemic,health risks,and economic consequences: Evidence from China

This paper introduces the Susceptible-Infectious-Recovered model into the Bewley-type incomplete market model and uses it to study the impact of the coronavirus disease (COVID-19) pandemic on China's macroeconomics. The calibrated model predicts that the average propensity to consume household wealth will decline, while the demand for money will increase, and these predictions are consistent with the data. Monetary policy is effective because it provides enough liquidity for households to buffer health risks. Monetary stimulus is more effective in an economy with greater health risks and consumption uncertainty. Counterfactual experiments show that abandoning the containment policy too early would avoid a sharp drop in output and employment in the short term, but it would greatly increase mortality and ultimately lead to a decline in social welfare.     

A comprehensive economic partnership between India and Japan: Impact,prospects and challenges

This paper examines the benefits and challenges of the 2011 Comprehensive Economic Partnership Agreement (CEPA) between India and Japan, specifically the ways to maximize gains from their complementary economies, trade and FDI relations. It also measures the partnership's economy-wide impact empirically, and its role in regional and global integration. An analysis of the trade intensity indices shows that the bilateral trade flow is small considering the other country's importance in world trade, suggesting the existence of great potential for improving trade relations. The computable general equilibrium (CGE) analysis of the economy wide impact of the CEPA suggests that tariff reductions will create a marginal increase in output growth for both India and Japan as compared to the business as usual scenario. In terms of the effect on exports, India's exports to Japan would increase more than those of Japan to India while positive net welfare gains are expected for both countries as a result of trade liberalization. This is in contrast to the study by Ahmed (2010), which finds welfare gains only for Japan, not for India. Furthermore, one of the striking results of the paper is that Japan will not reduce its heavy reliance on the Chinese market, though India will. In general, India, compared to Japan, will gain more, if CEPA materializes by 2020. Japan too will have welfare gains in spite of opening up the agriculture sector with 100% tariff reduction by 2020. Both countries need to accelerate structural reforms to remove the border barriers in addition to reducing tariffs, in order to reap maximum benefit of their economic partnership.     

Implications of a negatively sloped LM curve

Conclusion This paper has shown that the LM curve could be downward sloped if the rate of interest on money (specifically liquid deposits) is sufficiently flexible. If so, the momentary equilibrium could be unstable, especially if the LM curve is far from the vertical (i.e., if the interest rate on money is very flexible). Prospects for instability are enhanced if output adjusts slowly or if the central bank varies the money supply strongly over time in response to the general interest rate. If stability obtains with a downward sloped LM curve, fiscal policy has an unconventional direction of effect on income. Three policy implications follow directly. (1) The rate of interest on deposits which are part of the money supply used as the central bank control tool, should not be allowed to be too flexible (to avoid instability). (2) If the monetary deposit rate is quite flexible, the central bank should not have the money supply react too strongly to the general interest rate—i.e., should not come too close to a pure interest rate policy (again, to avoid instability). (3) If the monetary deposit rate is very flexible, fiscal policy should be used with caution (due to the unconventional direction of effect in the event LM is downward sloped).     

贸易摩擦背景下关税与货币政策反制策略研究

通过将贸易品美元定价约束、外汇噪声交易和关税反制等特征融入两国DSGE模型,文章对贸易摩擦背景下美国进口关税冲击的传导渠道以及中国的关税反制策略与货币应对政策有效性等问题进行了数值分析。研究发现,关税反制措施能够有效地对冲美国加征进口关税对中国实际产出、消费和净出口的消极影响,并有助于抑制人民币实际汇率贬值。若进一步搭配将出口品关税纳入利率调控框架的积极货币政策,对于经济扩张与保持汇率稳定都更加有效。但从长期社会福利角度看,积极货币政策对美国经济也具有明显的正向溢出作用,关税反制则会产生显著的福利转移效应,不采取任何关税与货币应对政策将使中国遭受最大的福利损失。因此,基于"打击最大化、自损最小化"原则,中国应对美国采取坚决有力的关税反击,同时保持货币政策相对中性、克制,以期实现"以战促和"的战略目标。     

CAPITAL FLOWS AND EXPORT EXTERNALITIES: AN EAST ASIAN CURE FOR THE DUTCH DISEASE?*

The analysis so far suggests several conclusions regarding policy under externalities in tradables production. It shows that conventional profit-maximizing solutions lead to too much investment, too much “up front” consumption, high period 1 real exchange rates, and underproduction of tradables. In this setting, it is possible that an improvement in an economy's access to foreign capital will lead to welfare losses. These distortions are most efficiently corrected by a tradables output subsidy, equal to the externality. This subsidy should be increased if the economy's access to foreign capital markets improves. In the absence of such subsidies, however, incentives to reduce investment and postpone consumption may be appropriate second-best policies. These policies, in effect, drive a wedge between rates of return on investment and foreign interest rates. Therefore the optimal policy will also require controls on foreign capital seeking to take advantage of higher interest rates at home than abroad.     

最低工资制在完全与不完全市场中的影响——一个理论分析框架

本文通过构建一个包含产品市场和劳动力市场的模型,分析了最低工资制度在社会、经济等方面的影响,并得出以下结论:如果企业是市场工资率的被动接受者,则推行最低工资制度在促进劳动者福利提升的同时,会以减损社会总福利为代价,同时社会总产出水平下降;如果企业对市场工资率有影响能力,则通过最低工资制度提高就业者工资率水平,这不仅会促进劳动者福利的提升,同时也会造成社会总福利的改进,社会总产出水平上升。以此为基础,结合当前中国的社会实际,对于最低工资制度的实施提供了相关的政策建议。     

Temporary Acceleration of Inflation: What Can a Central Bank Learn from It?

In this article I present a model in which the monetary authority conducts policy by setting money supply in the presence of uncertainty and Bayesian learning about the economic environment. I find that there exists a set of assumptions under which a temporary acceleration of money growth and thus of inflation increases the government's overall expected utility. There also exists a set of assumptions under which a temporary deceleration of money growth and thus of inflation increases the government's overall expected utility.     

The social value of income information in a model with market power and endogenous variety

The present paper analyzes the value of public information in a general equilibrium economy with imperfect competition. The welfare effects of an improved information system for perfectly competitive economies have been extensively investigated in the published literature. Schlee (2001) shows that the value of information is always negative in exchange economies if an efficient risk sharing mechanism exists. In contrast, in economies with production, better information reduces welfare provided consumers are sufficiently risk-averse ( Eckwert and Zilcha 2000, 2003 ). In the present paper it will be shown that this result is robust if the production sector exhibits monopolistic competition in the Chamberlinian sense. Even so, the inefficiency of equilibria adds further potential for positive welfare effects of improved information. A model is presented where the degree of market imperfection is positively linked to the value of information. If the markup on competitive prices is sufficiently high, the value of information is positive; that is, better information increases economic welfare.     

RCEP关税减让对各成员国的经济影响分析

大幅度削减成员国间关税是RCEP协议的核心内容,为了揭示RCEP成员国间关税减让的经济影响,文章首先分析了RCEP成员国间贸易现状、产品结构、进口关税和贸易竞争力,然后,运用GTAP模型模拟RCEP关税减让对各成员国宏观经济和产出的影响,得到结论如下：（1）RCEP关税减让可以缓解中美贸易摩擦对于中国经济的不利影响;（2）就短期而言,RCEP成员国间关税减让可以提高中国、日本、韩国和澳大利亚的GDP、社会福利、居民收入和消费水平等宏观经济效益,同时,还可以提高中国、韩国、澳大利亚、东盟的总产出水平;（3）就长期来说,实施零关税可能显著提升RCEP大多数成员国的宏观经济效益和产出水平。     

中国货币政策的福利损失与政策规则选择——基于新凯恩斯DSGE模型的分析

本文在新凯恩斯主义DSGE模型框架下,运用福利损失函数和脉冲响应方法研究我国最优货币政策规则选择的问题。研究结果表明,货币供应量规则相对于利率规则,使外生冲击对产出和通货膨胀的影响更持久,造成更大的福利损失,因此中央银行的货币政策规则应该逐步从货币供应量规则转向利率规则;在一定条件下,前瞻型利率规则、后顾型利率规则和泰勒规则所造成的福利损失相差不大,从便利的角度出发,中央银行应该选择后顾型利率规则。     

人口流动管制与中国宏观经济波动——基于异质性技能视角分析

人口流动是我国经济的热点问题之一，那么人口流动管制对我国宏观经济波动有什么样的影响?文章在标准RBC一般均衡模型中引入了异质性高低技能劳动，考察了人口流动管制对宏观经济波动的影响。研究发现：（1）劳动人口流动管制对总产出和总消费都有负向影响，会增加低技能工资，降低高技能工资；（2）资本质量冲击、政府购买冲击不仅会使消费和工资水平下降，同时也会造成福利下降，其中单位政府购买冲击会使居民福利下降最大，低技能总福利损失大于高技能总福利损失；（3）通过方差分解发现人口流动冲击能解释产出波动的7.83%和投资波动的5.60%，同时还发现随着经济中高技能比重加大，单位人口流动负冲击对社会福利损失越大。文章基于人口流动管制异质性视角研究得出流动人口管制不利于经济增长和社会总福利，为我国流动人口研究提供了新的研究视角。     

基础设施建设支出、结构性减税与最优政策选择

财政政策的最优政策选择问题对于国家宏观调控政策的出台具有指导意义。既往的研究忽略了利用动态一般均衡的方法探求具有双重外部性的基础设施建设支出与结构性减税支出的政策选择问题。本文利用引入基础设施建设支出和结构性减税的新凯恩斯DSGE模型,测算比较基建支出和结构性减税的政策福利效应。研究表明：具有双重外部性的基础设施建设支出不仅可以通过提高生产效率的方式促进产出,还可以通过挤入居民消费的方式加强政策福利效应。经过测算,短期的基建支出乘数大于结构性减税的政策乘数。同时,基建支出长期平均产出乘数小于结构性减税的平均产出乘数。与结构性减税政策相比,增加基建支出对于财政资金有限的政府是短期内更加有效的产出刺激政策,但在长期中,结构性减税政策不仅具有较高的政策效应,还可以从消费、劳动、投资等角度实现结构性政策目标。进一步研究发现,地区经济发展水平的不同会导致各地区的最优政策选择存在差异性：发达地区可以通过结构性税收政策解决结构性问题的同时实现长期经济增长;而欠发达地区则更应该注重运用基础设施建设为主的支出政策以促进经济增长;但随着人口逐渐从欠发达地区流出,提高欠发达地区的基建支出是否是可行之策,还需要考虑区域协调发展等诸多因素。     

The expectations management approach to stabilization in Argentina during 1976–1982

The main goals of the economic authorities in Argentina during 1976–1982 were to open the economy to foreign trade and to reduce inflation. The stabilization plan relied first on the control of money and wages, later on a preannounced schedule of a declining future exchange rate—actions that were supposed to be accompanied by a fiscal policy to reduce the public sector deficit.The stabilization plan was abandoned in the first quarter of 1981 for two reasons: an important financial crisis during the second quarter of 1980, and a deterioration of fiscal discipline that could no longer assure coherence between the deficit and the preannouncement schedule. The paper also argues that the political situation in Argentina undermined the credibility of the reforms and particularly the stabilization attempts. With the abandonment of the stabilization schedule, new commercial and exchange rate measures were gradually introduced, reversing the policy of opening the economy to foreign trade. The financial reform was reversed in 1982 with the virtual nationalization of deposits.The experience of Argentina suggests that capital inflows responding to interest rate arbitrage play a fundamental role in the short run dynamics of real exchange rates. They can promote the adjustment, or they can precipitate a run on the foreign exchange market. The lesson is that a stabilization plan based on the preannouncement of future exchange rates is highly risky for an economy like Argentina's.     

U.S. Monetary Policy: A View from Macro Theory

We use a dynamic stochastic general equilibrium model to address two questions about U.S. monetary policy: 1) Can monetary policy elevate output when it is below potential? and 2) Is the zero lower bound a trap? The model’s answer to the first question is yes it can, but the effect is only temporary and probably not welfare enhancing. The answer to the second question is more complicated because it depends on policy. It also depends on whether it is the inflation rate or the real interest rate that will adjust over the longer run if the policy rate is held near zero for an extended period. We use the Fisher equation to analyze possible outcomes for situations where the central bank has promised to keep the interest rate near zero for an extended period.     

MEASURING THE WELFARE COST OF INFLATION IN SOUTH AFRICA

In this paper, we estimate the long‐run equilibrium relationship between money balance as a ratio of income and the Treasury bill rate for the period of 1965:02 to 2007:01, and in turn use the relationship to obtain welfare cost estimates of inflation. Using the Johansen technique, we estimate a log‐log specification and a semi‐log model of the above relationship. Based on the fits of the specifications, we decided to rely more on the welfare cost measure obtained under the log‐log money demand model. Our estimates suggest that the welfare cost of inflation for South Africa ranges between 0.34% and 0.67% of GDP, for a band of 3‐6% of inflation. Thus, it seems that the South African Reserve Bank's current inflation target band of 3‐6% is not too poorly designed in terms of welfare.     

Pollution in a neo-classical world: The classics rehabilitated?

Summary In this paper it has been examined under what conditions the increasing costs of pollution will put a limit to the growth of output in a growing economy. On the assumption of a certain type of aggregate production function, labour- and land-augmenting technical progress and pollution costs progressively increasing with the stock of capital, the analysis led to the conclusion that only under very restrictive conditions economic development will not peter out in secular stagnation or semistagnation. Only if the rate of land-augmenting technical progress is sufficiently high with respect to the growth rates of capital and effective labour pollution costs will not be a barrier to economic growth. We thank Mr. A. F. Gerritsma, Roden, for drawing the figures.     

Tax incidence and price discrimination: An application of theories to gambling markets

This paper examines whether a casino tax is good for local welfare in a tourism economy. We find that what is important for efficiency is not the tax rate itself but the tax incidence on tourists. Casino tourism in Macao engages in price discrimination via market segmentation. We prove that, compared with the mass market, the VIP market will grow faster with a greater price rise if a tax hike on the VIP market is not large, but will grow less rapidly with a smaller price increase if the tax hike is very large. An empirical study is carried out using data from Macao, which is typical of segmenting markets for discriminatory pricing. We show that our theory is largely consistent with observed evidence. This paper also provides some policy recommendations useful for Macao. We propose that its casino tax should be kept low at its current rate in the mass market but be raised substantially in the VIP market if its economic growth is to be made less unbalanced and more sustainable.     

Effect of Money Supply on Real Output and Price in China

Over the past 30 years, China has achieved remarkable long-term economic growth. Using quarterly data, we study the effects of money supply on real output and inflation in China between 1993 and 2008. To this end, we use money supply shocks afler filtering out the expected component of the money supply. Our findings provide evidence supporting the asymmetric effect of positive and negative money supply shocks on real output and inflation in China. That is, real GDP growth in China responds to negative money supply shocks but not positive money supply shocks. In addition, inflation responds to positive money supply shocks but not negative money supply shocks. We conclude that the People＇s Bank of China＇ s policy of steady monetary growth appears to be appropriate. Our study offers important policy implications for China.