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TABLE 19. Treasury costs of increasing calorie consumption per person per day, in 1978 pesos
Desired percentage calorie gain of quartile la | ||||
Type of intervention | 1 | 5 | 10 | 28 |
Supply elasticity | ||||
S = 1.0 | ||||
Direct food-budget transfer to quartile I | 0.48 | 2.40 | 4.80 | 13.44 |
Income transfer to quartile I | 0.72 | 3.64 | 7.27 | 20.36 |
Price subsidy to quartile I | ||||
Rice | 2.58 | 44.70 | 168.90 | 1,274.28 |
Roots | 25.09 | 614.25 | 2,450.50 | 19,179.16 |
Sugar | 3.11 | 72.75 | 311.00 | 2,249.08 |
Oil | 21.90 | 529.10 | 2,107.20 | 16,474.08 |
Rice and corn | 3.84 | 66.00 | 249.00 | 1,876.56 |
Rice and oil | 2.42 | 40.90 | 153.80 | 1,156.40 |
All food | 2.71 | 39.75 | 145.00 | 1,066.24 |
S = 0.0 | ||||
Direct food-budget transfer to quartile I | 0.96 | 4.80 | 9.60 | 26.88 |
Income transfer to quartile I | 1.45 | 7.27 | 14.55 | 40.73 |
Price subsidy to quartile I | ||||
Rice | 3.00 | 52.20 | 197.00 | 1,490.16 |
Roots | 7.94 | 190.70 | 758.90 | 5,930.12 |
Sugar | 4.65 | 109.25 | 433.50 | 3,381.00 |
Oil | 19.60 | 471.00 | 1,874.50 | 14,648.20 |
Rice and corn | 4.98 | 85.30 | 321.60 | 2,422.56 |
Rice and oil | 2.82 | 47.90 | 180.30 | 1,356.60 |
All food | 3.19 | 47.75 | 160.60 | 1,291.36 |
CONCLUDING REMARKS
Policy Implications
This article has attempted to evaluate the nutritional effects of food price and income policies and to rank target-group oriented policies according to cost-effectiveness. Its primary emphasis was on an income-stratum-specific analysis of nutritional impact, giving priority to increasing nutrient consumption by low-income groups. The results of the analysis indicated the following issues to be of particular significance to agricultural, food, and nutrition policymakers.
First, income-stratum-specific analysis is essential to an understanding of the distributional effects of food policies. The general tendency in agricultural ministries is to concentrate on increasing aggregate food supply or agricultural production. However, unless these policies increase the incomes of nutritionally vulnerable groups, or unless productivity increases reduce the price of a staple food consumed by low-income households, increasing agricultural production does not imply improvement in the nutritional status of at-risk groups. While debates continue concerning which commodity to subsidize or which forms of income transfers most effectively minimize non-food leakages, the basic issue is to raise the real incomes of poverty groups so that they are able to meet their food needs as well as other basic needs. In evaluating agricultural policies, therefore, one must ask whether the policy will raise the real incomes of the poor, and whether it will not have adverse effects on nutrition.
Second, a consideration of the nutritional benefits and the costs of nutrition intervention programmes is necessary, given limited fiscal resources. The benefits of target-group oriented policies must be compared with the administrative cost involved: while precise targeting minimizes leakages to nutritionally sufficient households, it may entail administrative costs that increase the total cost of the programme. Other innovative approaches to targeting besides means tests deserve further study, for example geographical targeting or subsidies on nutritionally desirable but low-status commodities. Policy-makers must, of course, remember the political economy within which they operate, for the relative attractiveness of nutrition intervention programmes depends not only on the nature of the problems but also on the relative importance of such criteria as costs, political viability, and speed of implementation [7]. Nutrition advocacy by government institutions that affect nutrition directly or indirectly is, therefore, imperative.
Third, the powerful influence of food prices reiterates the need to formulate food price policy carefully so as to reconcile conflicting objectives. It is difficult both to pursue the objective of long-run efficiency in resource allocation and to meet the short-run need to alleviate the hunger problem with a single policy instrument. The success of food policy depends to a great extent on: understanding the political economy of food prices, developing more specific tools for managing a country's border price through buffer stocks, and achieving greater financial flexibility and control, as well as an explicit consideration of the macro-economic consequences of food policies on the level of aggregate demand, and the size of the trade and budget deficit [44] .
Limitations and Areas for Further Research
The aim of this study was to apply a market equilibrium displacement model to estimate the nutritional effects of food policies and to rank target-group-oriented policies in terms of cost-effectiveness. It must be emphasized, however, that this is only an initial attempt to evaluate some aspects of a complex phenomenon. It was limited by the assumptions needed to make the analysis tractable and by the data sample. Future research should take the following limitations into consideration.
The demand systems used were complete only with respect to the food subgroup: since the demand for food was a function only of food prices and the food budget, we were not able to account for food-non-food interactions in estimating the elasticities. Although we later computed an income elasticity of food expenditures to make allowances for non-food expenditures, the methodology needs to be refined when more complete and reliable data are available. The assumption of a separable utility function was a consequence of understated income data and the absence of data on total expenditure in this data set; without these data, the entire system with expenditures for other components could not be estimated. This limitation was serious, since preferences for food and non-food commodities have a profound nutritional impact, especially upon the lower income groups. The following steps should be undertaken to remedy this limitation. First, more complete household data must be collected; these must include items on total expenditures, broken down into broad groups. Second, an expanded demand system must be estimated using these data, so as to obtain a complete set of elasticities to be used in the market intervention model. Third, with cross-sectional data gathered over time, it will also be possible to estimate demand parameters that can be used for short-run simulations. These data will enable the researcher to study the nutritional impact of policies that affect not only food prices and the food budget, but also more general policies like tax, wage, or subsidy policies.
A second major limitation arose from the partial equilibrium nature of the model itself, which did not make the determination of incomes, prices, and quantities endogenous. Thus, the approach was really a comparative statics approach (comparing static not dynamic equilibria) and posed the question: given the values of parameters that can be affected by policy, how will nutrient consumption change? While the results of the simulations shed light on the potential impact of food policy, the answers are necessarily limited. It is, therefore, desirable to expand the model to consider both macro-micro interactions and to build in some endogeneity, as in the case of McCarthy and Taylor for Pakistan [26].
Aside from the limitations of linearity, there were other limitations which must not be overlooked. We have estimated only the direct treasury costs of target-group-oriented policies, ignoring administrative costs and welfare costs; an examination of the overall welfare costs using a social demand function is desirable. We must be prepared to include non-marketable benefits and to become involved in interpersonal comparisons of utility, valuing differently the increment of consumption of a well-nourished individual and that of a malnourished one [19]. Also, we did not account for issues of intra-family distribution of nutrients and the presence of especially vulnerable members of the household. These are issues which definitely deserve greater attention in future research.
A final caveat is in order: while the simulations were based upon response parameters estimated from Philippine data, they do not present a complete picture of the Philippine situation. In the light of the recent economic crisis, structural and behavioural adjustments may have occurred that are not captured in this simplified model. Thus, the results should be taken only as indicative of the results of food market intervention policies. This shortcoming, therefore, emphasizes the need for up-to-date and reliable data to be used as inputs into policy analysis. This study has been a modest attempt in that direction.
Despite its limitations, the study has enabled us to pinpoint and evaluate alternatives that can be used to increase nutrient consumption by the lowest income groups, Given the existence of social and economic multipliers between nutrition and other sectors and variables (e.g. health, productivity, and wages), and the important link between incomes and nutritional status, the need for distribution oriented economic growth has been emphasized. Nutrition intervention programmes must co-operate with this process, and must therefore be designed in such a manner as to reinforce and be consistent with desirable patterns of economic growth [7] .
AKNOWLEDGEMENTS
The author wishes to acknowledge the assistance of F. V. Lisondra for computer programming and Reynaldo
Antonio R. Mante in the preparation of the final report. The comments of Per Pinstrup-Andersen, Shlomo Reutlinger, and James Pines are greatly appreciated.
NOTES
1. Most of the empirical evidence is found in Bautista et al. [3]. This study computed domestic resource costs and effective protection rates (EPR) for a large number of import-substituting industries and found that these were quite high, the average EPR for manufacturing being 44 percent.
2. As a matter of policy, however, the Philippines does not intend to produce rice for the world market. According to Lim, one of the reasons is the limited market for Philippine rice [22] . Most Philippine rice mills are inefficient, producing from 35 to 50 percent broken rice, compared to the world standard of 5 to 10 percent. In addition, the Philippines had the unfortunate experience of losing about 90 million pesos in rice exports between 1977 and 1979. Rice was sold at a price below the cost of production since allowing the stocks to spoil would have cost the government more.
3. According to Mangahas, the difference in per capita calorie supplies between the countries in East and South-East Asia that are barely on the margin of food security and those that are clearly over the threshold is more in the vicinity of 25 percent, and even then food poverty may not yet be completely eradicated in the better-off countries [25].
4. Due to the importance of calorie consumption as a limiting factor in nutrition, emphasis must be given to gains in calorie intake by vulnerable groups. At the level of the at-risk groups, caloric adequacy should override all other nutritional considerations [13]. In cases where protein consumption is adequate but calorie consumption is not, for example, consumed protein would be used for energy instead of bodybuilding mechanisms.
5. Net intake = edible portion - plate waste. As-purchased weights include both edible and non-edible portions.
6. In 1984 the Food and Nutrition Research Institute of the Philippines based this marginal level for energy adequacy on a coefficient of variation of about 20 percent for energy expenditures by various occupational groups [15].
7. Since the poor spend a large proportion of their income on food, a food-budget transfer is likely to have substantial nutritional effects. Kumar has shown that food-linked transfers improve nutritional status more than other sources of income [20]; other authors (see, for example, references 26 and 42) have proposed that the marginal propensity to consume food from transfer income is substantially greater than the propensity to consume ordinary income. Such transfers may be politically more feasible than direct income or asset transfers.
8. Income elasticity is computed as:
where E is the percentage change operator, EQi/EY is the income elasticity of good i, EQi/EFB is the food-budget elasticity of good i, dFB/dY is the marginal budget share and Y/FB is the reciprocal of the budget share. To some extent, these estimates are very rough since they are based on expenditure shares from the 1971 Family Income and Expenditure Surveys ( FIES) of the National Census and Statistics Office, not actual budget shares However, unlike the FNRI survey, the FIES has data on total expenditures. A bias probably exists for the higher income groups since there would be a greater difference between expenditure shares and budget shares.
9. Needed percentage change in the food budget (or income) is computed as: desired percentage change in nutrient consumption/food-budget elasticity of total nutrient consumption (or income elasticity of total nutrient consumption).
10. For example, for Regalado, the first stratum has a calorie deficit of 12.73 percent and the second of 7.43 percent. The third and fourth strata are in excess by 4.51 and 19.80 percent respectively [36]. The estimates of sufficiency may be biased upwards since calorie intake was computed by multiplying quantity consumed by the nutrient equivalent, without deducting inedible portion and plate waste. This bias is indicated in an average adequacy of 100,58 percent, as compared with the Food and Nutrition Research Institute's average of 88.6 percent, the latter adjusted for plate waste and inedible portion, and thus representing actual intake 114, 151.
11. Of course, these can be modified through nutrition education programmer. However, recent experience with nutrition intervention programmer has shown that these are not as effective as direct programmer, such as subsidy and transfer policies.
12. The Pilot Food Discount Project covers 18 barangays in Abra, Antique, and Cotabato. A 30 percent discount on rice and a 50 percent discount on cooking oil are available for limited quantities of the commodities concerned. The project will be in effect for a year; the results are encouraging but not yet conclusive (interview with Marito Garcia, project director, 20 August 1984).
13. See Quisumbing 1341 for a detailed breakdown by commodity of the nutrient consumption changes.
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Economic Recession, Adjustment Policies, and Nutrition
Arising from a symposium on "Economic Recession, Adjustment Policies, and Nutrition," held at its Twelfth Session at the United Nations University in Tokyo on 7 and 8 April 1986, the ACC Subcommittee on Nutrition draws the following to the attention of the ACC:
The ACC Subcommittee on Nutrition will continue to address this vitally important issue.