Should policymaking account for market expectations? An estimate of their impact on commodity policy

Costs and effects of commodity price stabilization will depend on private price expectations, and these price expectations do respond to changes in public policy. Past empirical studies assumed that price expectations did not incorporate policy constraints on price. The following article examines the implications of correcting this weakness in earlier studies. Substantial differences in estimates of stabilization con result from this improvement in methodology.     

Distributional effects of international commodity price stabilization: Do the aggregate gains apply to individual producing countries?

This paper demonstrates the different producer gains and losses that can occur from a price stabilization scheme in a same market. An international buffer stock model integrated in a trade flow model of commodity exports of the Latin American economies is used to simulate two representative products: coffee, where instability in the world market has originated mainly from changes in supply, and copper, where the major source of world market disturbances have been demand shifts. The results show that global generalizations as to the net benefits or costs of price stabilization are erroneous at the producer country level in supply or supply/demand dominated instability, a condition that typifies many primary commodity markets.     

Must high commodity prices depress the world economy? An application of a world model system

The impact of higher primary commodity prices on the world economy is central to the North-South dialogue. The less developed countries are seeking a way to obtain a larger share of world income. In the context of current discussions of commodity price stabilization, UNCTAD's “integrated programme” for example, this is likely to mean higher commodity prices. A critical question is then, “Must higher prices for primary commodities depress the industrial economies?”The cyclical swing of 1973–1975 would seem to support the thesis that high primary commodity prices lead to recession in the industrial countries. Yet this experience is not conclusive evidence. Many complex forces, some natural and others policy induced, accounted for the recession. The impact of primary commodity prices must be considered in a full system, recognizing not only the direct costs, but also the resulting demand feedback. Under different circumstances, higher payments to the commodity producing LDCs may well increase demand for manufactures and stimulate exports and industrial activity in the developed countries.This paper uses a version of the LINK world model system to examine the linkages between commodity prices and world economic activity. In the first part we examine the demand feedback in a simple theoretical model of the interrelationships between commodity consumer countries and the commodity producers. In the second part we use an empirical system, COMLINK, the version of the LINK system that incorporates commodity models and commodity price linkages, to simulate various types of commodity price impacts.     

Free riders and the redistributive effects of international commodity agreements: The Case of Coffeee

Most studies on the redistributive effects of international commodity agreements neglect the existence of free riders. This article shows, however, that incentives for a free rider behavior may exist under various systems of commodity control. The International Coffee Agreement includes an export quota scheme that is faced with free riders on the import side. The factors that determine the impacts of such a scheme on prices, trade, earnings, and expenditures on the world market and on welfare of importing nonmember countries are elaborated theoretically. An econometric model of the world coffee market is then used to measure the effects of coffee export quotas on different variables of the world market. By use of estimated national import demand functions for coffee, the national welfare gains of importing nonmember countries due to the quota policy of the International Coffee Agreement are also computed.     

Comments on Montague J. Lord's “distributional effects of international commodity price stabilization: Do the aggregate gains apply to individual producing countries?” [JPM 3:61–75 (1981)]

Lord discusses the impact of international commodity price stabilization on Latin American producing country export revenues. He correctly emphasizes that the directions and magnitudes of such effects may vary substantially across producers, depending on the degree of segmentation of the commodity markets and the nature and distribution of the shocks. However his potential contribution may be lost because of a number of inaccuracies, which I discuss under three general topics.     

The Price Effects of Family Caps on Fertility Decisions of Poor Women

ABSTRACT

Family Caps have been a popular welfare reform policy designed to discourage women on welfare from bearing additional children. It has been thought that the principal mechanism through which a Cap achieves its objective of lower birth rates is the financial pressure placed on women by the denial of cash benefits. Our study uses instrumental variables Probit modeling to directly measure the contribution that price makes to Cap impact on births. We reexamine data from the New Jersey Family Development Program (n = 8,393) experiment and find that only a very small percentage (about 2.5%) of the overall Family Cap effect reported in earlier studies can be attributed to price. Moreover, the price effect holds only for short-term Black welfare recipients. We speculate that much of the unexplained Family Cap treatment effect stems from a message of social pressure and disapproval toward welfare receipt and childbearing on welfare. We offer a possible direction for future research which would directly measure the social disapproval component.     

Optimal stabilization policies for housing activity

The usual approach in econometric modeling is to assume that the behavior of government agencies is exogenous. In this paper we have suggested that the policies of government agencies are not truly exogenous and should be studied in relation to the specific objectives pursued by these agencies.Within this framework, we investigated the implications of optimizing the behavior of two U.S. government agencies, Federal Home Loan Bank (FHLB) and Federal National Mortgage Association (FNMA), involved in the housing market. The technique we have utilized is dynamic programming.Based on the assumption that there agencies attempt to stabilize the housing market we have calculated the values for the optimal strategies in the past years and compared them with the historical patterns they have actually followed. Our interpretation of the behavior of these agencies is as follows: FHLB has a significant potential for housing stabilization. However, it has historically put more emphasis on keeping a uniform policy than stabilizing the housing activity. In this way, the role it has played in the housing market may be more destabilizing than stabilizing. On the other hand, FNMA's activity has had a rather uncertain effect on the housing stabilization. The conservative policies that FNMA has followed in the past are consistent with the uncertainties implicit in decision making but, at the same time, can be blamed for failing to create sufficient information regarding their effectiveness on the housing stabilization.     

国际商务谈判的博弈论议价模型分析

商务谈判是谈判各方当事人在追求共同商业目标,实现双方商业利益整个过程中不断化解冲突、实现谈判者最大利益的手段。在商务谈判中,正确掌握国际商品价格对于节约交易成本,增强企业国际市场竞争力,具有重要意义。可以从博弈论的角度,建立国际商务谈判的议价模型,对信息进行组织、筛选,寻找一个最佳的价格点来分析谈判双方应采取的策略。     

Commodity market stabilization: A comparison of simple and optimal intervention strategies in the world copper market

With the publication of the Brandt Report, international commodity policy has again become an important issue. Commodity stabilization agreements have been proposed as a means of stabilizing producers' incomes and/or redistributing wealth to less developed economies. This paper examines, in the context of a single market, the extent to which prices can be stabilized, the potential costs of such a scheme, and whether this redistribution would be achieved. By comparing the bandwidth rules that have been proposed with optimal stabilization rules, we find that significant stabilization is possible but expensive and that bandwidth rules are likely to prove inadequate because they cannot anticipate.     

Indexation of international commodity prices through international buffer stock operations

The developing economies have been advocating the indexation of the prices for their primary commodity exports by tying such prices to other relevant international prices, such as the prices of imports to the less-developed countries. We have used econometric models to simulate a program of indexation of the prices of the ten UNCTAD core commodities at their 1963 levels for 1963–1975. The results suggest definite difficulties in such a program. Most notably the order of magnitude of the costs of buffer stock operations and financing is likely to be prohibitive. Also the distribution of benefits and losses among the less-developed countries is quite arbitrary. Therefore we are very skeptical about indexation by buffer stock operations.     

Commodity prices and the world distribution of income

Some advocates of a new international economic order recommend raising prices of commodities exported by developing countries as a means of reducing the inequality of world income distribution. A simulation model using commodity trade data and income distribution data for 68 industrial and developing countries examines this policy alternative. Initial data compilation reveals that internal inequality is as important as international: The world income share of the poorest 40% of people would be twice as high in the absence of intracountry inequality. Calculations using actual price experience in the “great inflation” of 1972–1975 show that despite the large relative price changes for some commodities (especially oil), these changes left the world size distribution of income virtually unchanged. Separate policy simulations show that even a quadrupling of the price of ali “equalizing” commodities (those mainly exported by LDCs) would leave the size distribution of world income practically unaltered (even under optimistic assumptions about intracountry distributional incidence), although some individual LDCs would gain. Increasing commodity prices therefore appears to be an ineffective means of increasing international equity, quite apart from questions about the feasibility of cartels or commodity agreements.     

Macroeconomic stabilization of primary commodities price cycles in developing economies

This paper proposes a strategy for stabilizing macroeconomic policy to address jointly the effects of changes in the prices of food, minerals and energy (oil). Our approach differs from the general literature, which analyzes the effects of a commodity boom or bust and therefore the solutions in terms of economic policy separately, that is, by type of commodity. The stabilization strategy that we propose considers a key fact affecting many open economies, namely, that they not only are affected by increases or decreases in commodity prices, but also benefit from them. Consequently, we use a structural model for an open economy with restricted households to show that welfare could be improved with a fiscal rule incorporating transfers to stabilize household consumption. This strategy noticeably dominates an aggressive monetary policy focused only on stabilizing inflation and a fiscal policy that has an excessive bias toward saving income from exports.     

A model of price and quantity adjustments in primary commodity markets

This paper presents a dynamic, simultaneous model of price and quantity adjustments in world primary commodity markets. The model is formulated in a disequilibrium framework, emphasizing particularly the role of price adjustment. In addition to the price equation, commodity consumption and production equations are also specified. The empirical analysis of the model is carried out with the annual data of six primary commodities: coffee, cocoa, rubber, copper, tin, and sugar. This includes the estimation of price, consumption, production equations, the simulation tests of complete structural models for these six commodities, and the derivation of dynamic responses (measured by elasticities) of commodity prices to changes in world income, world inflation, and commodity outputs. Dynamic simulations strongly confirm the commonly observed self-generating and recurring boom-and-bust cycles of primary commodity prices. This finding lends credibility to the models constructed.     

The experience of the EEC Eurolink Project in modeling bilateral trade linkage equations

Following the basic philosophical approach of the LINK Project, which links various national econometric models built in different countries, the Commission of the European Communities has succeeded in linking the full-size quarterly econometric models of the four major European countries. The Eurolink Project is being extended to cover the other EEC countries as well as the United States, Canada, and Japan. The results reported in this paper are part of this larger project which attempts to link the EEC member economies in a trade and capital flows econometric model and explain the transmission of interdependent economic fluctuations from country to country. In the present study, the interconnection between the various economies is represented by bilateral trade flows only. Flows of invisibles and of financial capital are not completely studied and are not yet ready to be included in this report.The theoretical structural model with its bilateral trade supply and demand functions and the technique employed for the construction of bilateral import and export price indices are presented. Estimation results are shown and discussed with emphasis on their use for the analysis of international trade and for policy decision making.     

Price vs. revenue stabilization through a buffer stock: Which is more financially feasible for LDCs?

Optimal control theory is used to analyze the implications of the adoption of price and LDC export revenue stabilization objectives by an international buffer stock for cocoa. The results obtained for the period 1956–76 suggest that the stabilization of either price or revenue at systematic trend would reduce the instability of both variables from that during the sample period. Although the stabilization of revenues at systematic trend decreases their average level, the stabilization of price has the opposite effect. Because of this, it may be financially feasible for the LDCs to provide the necessary resources for a price-stabilizing buffer stock.     

The evolution of the social welfare system in Palestine: Perspectives of policymakers in the West Bank

Palestinians living in the West Bank and the Gaza Strip have long experienced social problems such as high rates of poverty and unemployment. These social problems necessitate the development of a viable, effective social welfare system. Relying on colonialism theory, this study examined the evolution of the social welfare system in the Palestinian Territories with an emphasis on the West Bank. Data were collected through semi‐structured interviews with 16 staff officials in Palestinian ministries and through archival material and administrative records. Results indicate that the Palestinian National Authority inherited a fragmented social welfare system in 1994 that lacked an appropriate legal framework. Additionally, internal deficiencies (e.g., unclear legal mandates, duplication of services) and external restrictions (e.g., road closures) have undermined the effectiveness of Palestinian social welfare institutions. The newly adopted approach to social welfare planning (i.e., partnership) and recent national planning initiatives show promise. Implications for social welfare policy and future research are discussed.     

International transmission of monetary and global commodity price shocks to Turkey

This paper explores the international transmission mechanisms on the macroeconomic and monetary variables of Turkey and hence proposes some particular policy implications. The effects of monetary shocks stemming from the U.S. and the European area, and global commodity price shocks are investigated using a structural vector auto-regression (SVAR) approach. For the analysis, we use monthly data from 2002M01 to 2016M06 and we analyze the transmission mechanism in Turkey using two different SVAR model specifications. Our results reveal that shocks coming from the U.S. and the Euro area lead to significantly different responses on industrial production, consumer prices, real effective exchange rates, and the domestic interest rate, with the Euro area monetary expansion having more explicit and positive effects on the real economy. The global commodity price shocks affect the Turkish macroeconomic variables in a similar but much less powerful fashion than that of the U.S. monetary expansion. As our empirical findings point out that the Turkish economy is vulnerable to global monetary and commodity price shocks. This vulnerability necessitates moving to a sustainable growth path consistent with a sustainable current account balance and a sustainable private and government debt coupled with a strengthened macroprudential regime and comprehensive structural reforms.     

International Impacts of protection: model structure and results for FC agricultural policy

A dynamic international commodity trade model is introduced that combines stochastic production with three features: multimarket dynamics, endogenous trade policy behavior, and endogenous stock-holding behavior. The significance of these features is illustrated using versions of the model with each excluded in turn. Their role in policy analysis is examined by using each version to measure the impacts of the grain-meat components of the European Community's Common Agricultural Policy. The absence of each is found to alter significantly the estimated terms of trade, trade volume, and welfare effects. Endogenous stock holding is found to be especially important when insulating trade policies are reprented in the model.     

商品社会使用价值与市场价格规律论

现代经济理论的两大体系 ,都对价格的有关理论做出了说明。有一种说法 ,把马克思主义经济学的劳动价值论与当代西方主流经济学派的供求论综合起来 ,就应当可以得到较为完美的价格理论。但这是不可能的。解决问题的出路 ,只能是按马克思主义经济学的内在逻辑 ,深入研究商品的使用价值 ,通过商品价值和使用价值对商品价格做出完整的说明 ,同时破解在供求与价值决定上的相互循环论证 ,发展以劳动价值为基础的价格理论。商品的使用价值 ,具有自然使用价值和社会使用价值两重属性。商品的社会使用价值深刻地反映着商品交换的经济关系 ,由自然使用价值等一系列因素决定。商品社会使用价值 ,在量上最终表现为某一商品的社会需求量与生产供给量的比率 ,在不同的条件下具有不同的值。商品的市场价格 ,由商品价值或其转化形式与商品社会使用价值共同决定。社会使用价值比价值或其转化形式更复杂、更多样、更易变 ,是市场价格变化的主导因素。社会使用价值为 1的市场价格 ,即是市场均衡价格。所谓市场价格围绕商品价值或其转化形式上下波动 ,实质上应是围绕市场均衡价格上下波动。调节市场供求关系的根本因素 ,表面上看是商品价格 ,而实质上是市场供求的相互作用。     

The Law of the Sea treaty and the regulation of nodule exploitation

The production of nonferrous metals from manganese nodules from the ocean floor has potential impact on prices of cobalt, copper, nickel, and manganese and on the earnings of land-based producers. These effects must be considered in the Law of the Sea negotiations. This article uses econometric models to evaluate the impact of nodule production on the LDC producers. We find that the price impact is greater for cobalt whose nodule production is very large relative to conventional output, but that the impact on LDC earnings is greater for copper and nickel.