Reforming the European Common Agricultural Policy: From price & income support to risk management

Over the last 30 years, the European Union has significantly reformed its Common Agricultural Policy by introducing direct payments to farmers and reducing price support levels. While the European agricultural prices become more volatile, all economic models assessing these reforms remain static and ignore the risk dimensions. This paper develops an original stochastic computable general equilibrium model capturing the different sources of risk, farmers’ risk attitude and risk contingent markets. We find that the reduction of price support levels has modest market impacts but negative global welfare effects by exposing risk-averse European farmers to the world price volatility. This issue is not solved by the direct payments, which have negligible market and global welfare impacts through their wealth effects. On the other hand, we find that unbiased futures markets can solve this global welfare issue by allowing European farmers to transfer their price risks. Therefore, European policymakers should ensure well-functioning risk contingent markets rather than maintaining rigid intervention price levels.     

Energy supply shocks: Macroeconomic consequences for Ukraine

In exploring the short-term macroeconomic effects of energy supply shocks in Ukraine, this paper relies on the simplifying assumption that enterprises face economic regulation but not ownership uncertainty or a soft budget constraint that would adversely affect their behavior. In a sense, it assumes that Ukraine's economy is already at the second stage of reform, when ownership, contract-enforcement, and hard budget constraint questions are less of an issue. Under these assumptions and if real wages are protected, the analysis yields clear messages. Protecting the domestic economy by not passing through external price increases may cushion the decline in production and social welfare, but at a heavy cost to savings and investment; not only does it postpone adjustment and the emergence of a competitive economy, but it also deprives the economy of investible resources. Passing through external price increases while maintaining a fixed-price regime may improve the mobilization of resources but at a heavy cost to output and welfare, because it induces a heavy contraction in activity. Liberalizing prices in the nonenergy sectors in conjunction with passing through external price increases allows these sectors to generate the larger resource transfers required by a deteriorating terms of trade, in turn pulling up output; the economy can settle at a higher level of activity and welfare than in the presence of fixed prices. The conclusion is that Ukraine must clarify ownership and contract-enforcement issues as well as harden the budget constraints of enterprises as rapidly as possible, liberalize nonenergy prices at a minimum, and begin adjusting domestic energy prices to reflect the opportunity cost of these resources. Since the fall of 1994, Ukraine has proceeded to liberalize its price and trade regime, which should bring the economy a long way to recovery as outlined in this paper.     

A small forecasting model of the world oil market

An annual, small-scale econometric model of the world oil market was developed to analyze oil market conditions and oil prices for the period 1986–1991. The model determines the oil price by a market-clearing condition, given world economic activity and the strategic supply behavior of the OPEC core countries. The effects of OPEC production cut in 1987 upon oil prices are evaluated, and alternative oil price profiles are provided. A simulation experiment suggests that if the OPEC core is pressed to defend the OPEC share in oil supply, then wide price swings may become inevitable.     

An alternative assessment of global climate policies

This paper analyzes alternative pricing schemes for funding investment in climate policies. This paper proposes a new policy scenario, explicitly disentangling the issue of burden sharing of financing new investments from the issue of taxation energy consumption and therefor emissions. We compare traditional allocation schemes with an optimal Ramsey pricing by applying demand elasticity values, derived from empirical estimations of household behavior for the 106 leading countries in the world, representing around 90% of total world energy consumption and carbon emissions in 2014. We calculate country-specific alternative taxation options: uniform, equitable and Ramsey pricing schemes, applied to households, assessing the related welfare effects. Our results show that the optimal pricing scheme, for a given investment need, can improve world welfare at the expenses of equitable considerations. In addition, the aggregate societal benefit outweighs the losses associated with specific group of countries, paving the way for easier political agreement, using compensation schemes to redistribute the proceeds.     

Modeling oil price fluctuations and international stockpile coordination

Major interruptions in the supply of crude oil in the Middlle East have caused significant economic damage in terms of lost output and incresed inflation in the industrial countries. To the extent that the macroeconomic costs of shocks are a function of the magnitude of the oil price increases, domestic or internationally coordinated policies to restrain oil price increases during disruptions can be beneficial. One such policy initiative is the release of oil held in public stockpiles. We address the motivations for private and public stockpilling in an intertemporal optimizing model. As a special case of our general model, we develop and simulate a model of the world oil market to examine the benefits (in terms of lower world oil prices) of releasing oil from the U.S. Strategic Petroleum Reserve.     

Simulating alternative foodgrain price and trade policies: An application for the Dominican Republic

Self-sufficiency and free trade are two of the most frequently advocated foodgrain policies. This paper presents a methodology for simulating the impact of thse two policy alternatives on a country's production, consumption, farm price, retail price and trade of a staple foodgrain. Simple formulas are also derived for estimating the effect of different policies on consumer and producer welfare. A simulation of the two policy alternatives is conducted for the case of rice in the Dominican Republic.     

Oil prices,stock market returns and volatility spillovers: Evidence from Turkey

This paper examines the relationship between crude oil prices and stock market returns in Turkey taking into account volatility spillovers that are exemplified by second moment effects. Using weekly data from 1990 to 2017 and time varying causality-in-mean and causality-in-variance tests and taking into account structural breaks, we model each series as an EGARCH process in order to capture any leverage effects in the volatility of returns. Empirical results suggest crude oil prices as measured by Brent benchmark have significant effects on stock market returns in Turkey. While we fail to document significant spillover effects stemming from oil prices in the entire sample, there are significant spillover effects from crude oil price changes to stock market returns in 1993 and 2008–09. These results suggest that government policies must take into account risk spillover effects between markets and that investors are better off monitoring crude oil markets in portfolio allocation decisions.     

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.     

Commodity price shocks and the distribution of income in commodity-dependent least-developed countries

Many least developed countries (LDCs) face commodity dependence on the export and import side. This paper develops a structuralist computable general equilibrium model for commodity-dependent LDCs and simulates global commodity price shocks for Burkina Faso, Ethiopia and Mozambique. Results show important macroeconomic and distributional effects. Although increasing export commodity prices are beneficial, the high correlation with import commodity prices causes low or even negative combined effects. The magnitude of effects depends on the degree of import and export dependence, the production structure of the key commodity sectors and policies that determine the distribution of windfall profits.     

Prices in input-output: The INFORUM experience in modeling the U.S. deregulation of domestic oil

Prices, and particularly relative prices, have moved in recent years to the center of our attention. Soaring oil prices, large increases in agricultural prices, and rising costs of product materials and finished goods on world markets have set in motion major changes in the world economy. To model these changes, it has been necessary to use input-output analysis, for our input-output models have the necessary detail to trace these effects. This use of input-output may seem paradoxial to those who, for many years, dismissed this technique because it allegedly fails to take account of the effects of prices. The truth turns out to be almost the reverse: Only input-output can take full account of prices.This paper shows how prices work in the INFORUM model of the American economy. Specifically, it describes how the model generates prices, uses the prices in equations for personal consumption, and changes input-output coefficients on the basis of relative prices. Finally, it compares runs of the entire model to examine the effects in the U.S. of increasing domestic oil prices to world levels.     

The Impact of Welfare Reform Policies on Child Protective Services: A National Study

The 1996 welfare reform bill set forth major changes in social welfare policies. In addition to federal work requirements and time limits, new state policies impose behavioral mandates that may be accompanied by financial sanctions for noncompliance. Analysis of a survey of state Child Protection Services (CPS) directors focuses on four major areas: effect of Temporary Assistance to Needy Families (TANF) on CPS; interaction between the two agencies; role of TANF sanctions in referrals to CPS; and select special areas of concern. This research provides empirical insight into the interaction between these two agencies, specific TANF sanctions, and the potential conflicts between TANF policies and CPS concerns for the welfare of children and families under its charge.     

抗战时期物价问题之我见

本文分析了抗战时期中国经济困难及物价上涨的原因,介绍了国民政府的经济对策和美国的对华经济援助,论述了稳定物价应采取的措施,解析了战时物价问题得不到根本解决的症结在于严重的货币超发。     

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.     

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.     

Clean cooking energy transition in Nigeria: Policy implications for Developing countries

Lack of access to clean cooking energy systems negatively affects the health and welfare of millions of people in developing countries. Different factors such as household income, household size, fuel price, and information spread have been identified as barriers to the widespread uptake of clean cooking systems. However, analyses exploring the dynamic influences of these factors towards accelerating clean cooking from the long-term perspective are limited. Here, we employ a system dynamics modelling framework to simulate how various strategies could affect the adoption of clean cooking systems in Nigeria over time. Our results reveal that clean cooking adoption is a fluctuating process, and the trends present a non-linear behaviour. We found that the adoption of clean cooking energy systems would occur faster early in the simulating year among urban households than in rural households. The results indicate that, at low prices of liquefied petroleum gas, many rural households will switch to clean cookstoves with higher adoption rates than consumers in urban households. Additionally, results from baseline scenario analysis revealed that, without significant policy interventions, not all households would switch to clean cooking. Our analysis further indicates that households with fewer members tend to transition quicker to clean cooking options than larger households. The impact of clean cooking due to communication among households would be more significant among rural households than among urban households. While the model results are perceptive, we emphasise that potent policies are needed to accelerate the diffusion and adoption of clean cooking energy systems in Nigeria and other African countries.     

What Price Nondisclosure? The Effects of Nondisclosure of Real Estate Sales Prices*

Objective. Only a select set of states still do not require mandatory public disclosure of real estate sales prices. In this article we examine the possible public‐sector consequences of failing to make real estate sales prices publicly accessible. Methods. We propose a set of possible public‐sector consequences of sales price nondisclosure (property tax assessment inequities, tax revenue leakages, administrative inefficiencies, and related ancillary effects). We identify examples, provide limited empirical evidence (simple regressions and distributional analyses) on the restricted data available, and discuss the relevant legal considerations at a variety of administrative and geographic scales. Results. The limited statistical results and examples provide evidence of possible inequities in effective tax rates and tax revenue leakages that may be connected to sale price nondisclosure. Conclusions. We argue that there is a strong prima facie case for legitimate public concerns attached to real estate sales price nondisclosure.     

Single-year and multi-year insurance policies in a competitive market

This paper examines the demand and supply of annual and multi-year insurance contracts with respect to protection against a catastrophic risk in a competitive market. Insurers who offer annual policies can cancel policies at the end of each year and change the premium in the following year. Multi-year insurance has a fixed annual price for each year and no cancellations are permitted at the end of any given year. Homeowners are identical with respect to their exposure to the hazard. Each homeowner determines whether or not to purchase an annual or multi-year contract so as to maximize her expected utility. The competitive equilibrium consists of a set of prices where homeowners who are not very risk averse decide to be uninsured. Other individuals demand either single-year or multi-year policies depending on their degree of risk aversion and the premiums charged by insurers for each type of policy.     

Racial Disparities in Welfare Dependence and Financial Independence: Links to Human Capital,Local Economy,and State Temporary Assistance for Needy Families Policies

This secondary data analysis examined racial disparities in associations betwen welfare dependence/financial independence and human capital, local economy, and state TANF policies. A sample of 6,737 parents was extracted from the public-use data set titled “National Longitudinal Survey of Youth.” Results showed that restrictive TANF policies reduced African Americans’ likelihood of welfare use and increased likelihood of their financial independence. Multinomial logistic results also showed that, among Hispanics, employment growth in neighboring counties promoted welfare use; whereas among Caucasians such growth promoted financial independence. County poverty increased (a) Caucasians’ likelihood of welfare use and (b) Hispanics’ likelihood of being working poor; it decreased Caucasians’ and African Americans’ likelihood of financial independence. Across ethnic groups, education reduced likelihood of welfare use and working poor status; across minority groups, education increased likelihood of financial independence, but among Caucasians it decreased such likelihood. Across ethnic groups, occupational skills hindered dependence and improved odds of employment (regardless of welfare or poverty status). This study concluded the studied TANF policies and job markets were not color-blind. Interventions this study implies include less-restrictive TANF policies, generous support services, TANF staff cultural-competence training, and antidiscrimination rules. Research investigating particular TANF policies’ and services’ effects by ethnicity might prove useful.     

A model of the inflationary process in six major O.E.C.D. economies: Empirical results and policy implications

In contrast to most recent empirical work on inflation which has concentrated on the size and stability of coefficients in the wage equation, this paper provides a reexamination of the price equation. Evidence is presented on the structural determinants of inflation in six large industrial nations. It is demonstrated that price equations which include capital costs and excess demand among the regressors perform exceedingly well according to the usual statistical criteria. The results of this study indicate that the inflationary process possesses a high degree of uniformity among the larger industrial countries. This pertains not only with respect to the specific independent variables in price equations, but also with respect to the high degree of uniformity of the estimated coefficients. Additionally, the findings indicate that lower productivity growth and higher capital costs have contributed significantly to the inflationary process since 1974. Furthermore, since higher capital costs are one consequence of tighter monetary policies, the adoption of such policies in response to the two oil price shocks of the 1970s may have offset their intended deflationary effects on prices through the linkage of wage costs and aggregate demand.     

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.