EDUCATION AND THE NATIONAL WEALTH OF THE UNITED STATES*

Human capital theory has motivated a great many empirical investigations into the relationship between education and earnings potential. These studies test refinements of the theory, but do not attempt to value education for the economy as a whole. This study develops series which track human wealth and its educational components for the United States from 1946 to 1980. Three related educational time sequences emerge: (1) schooling wealth, the present value of the current and future contributions of the existing schooling stock to national income; (2) net change in schooling wealth, the amount added to present value in that year; and (3) schooling investment, the present value of the future contributions of the new schooling conducted in that year. One important lesson of this exercise is that the last two series can be quite different as a result of the pattern of appreciation and depreciation of human wealth over the lifetimes of individuals. Moreover, education increases the age of peak human wealth and thus should shorten the period during which individuals save for retirement. This phenomenon may induce a demographic cycle in the nation's savings rate, especially evidenced with the aging of the baby-boom cohort. The magnitudes of the human and schooling wealth estimates are large when compared to financial wealth. For a 4 percent rate, the period-wide average for human wealth is five times-and schooling wealth 2.6 times-the Federal Reserve Board's measure of household net worth. These estimates are naturally sensitive to the discount rate chosen, but show that the gap between human and financial wealth has been widening and that the value of schooling provided in any year greatly exceeds its cost. Schooling represents a form of saving whose value is several times the conventional measure of saving.     

A SYNTHETIC ESTIMATE OF THE NATIONAL WEALTH OF JAPAN 1885–1973*

This article present estimates, in current prices, of the national wealth of Japan and of about a dozen components for twelve benchmark dates between 1885 and 1973, the distance ranging, with one exception, from five to twelve years. The estimates are derived by a combination of (a) Ohkawa's perpetual inventory estimates of reproducible fixed assets for the period from 1885 to 1940 and Economic Planning Agency censuses for 1950 to 1965, roughly extrapolated to 1973; with (b) estimates of other components of national wealth (land, inventories, consumer durables and net foreign assets) taken for the pre-war period chiefly from census-type data and derived for the postwar period from miscellaneous, mainly official, sources. As in most countries the current value of Japan's national wealth increased until World War II considerably more slowly than its national product, which expanded with extraordinary rapidity. In the postwar period, however, the ratio showed a slight upward trend reaching by 1973 fully 3 1/2. The ratio of all reproducible assets to national product showed a similar pattern at a lower level, reaching 2 1/2 in 1973. In contrast the ratio of so-called productive assets (non-residential buildings, equipment and inventories) failed to show a definite secular trend remaining between 1.5 and 2.2 at all but one benchmark date. Changes in the structure of national wealth over the past century were pronounced, but very different before and after World War II. Up to the 1940's, the share of land declined sharply from about one-half to less than one-fourth, to the benefit primarily of producer durables and non-residential structures. In the last quarter of a century, in contrast, the extraordinary rise in urban land prices brought the share of land in national wealth back to one-third (though the share of agricultural land continued to decline rapidly), while that of producer and consumer durables continued to increase.     

NATIONAL WEALTH ESTIMATION IN SOCIALIST COUNTRIES

The CMEA standard of statistical information provides a system of national wealth indicators. The paper deals with certain time series published in these countries and in the CMEA Statistical Yearbook as the components of that system. Special attention is paid to the USSR interbranch balance of 30 types of fixed assets cross-classified by 105 branches of economy. This balance is analogous to the input-output table technique in the western literature. On the basis of this balance the Soviet statisticians furnish coefficients of direct and total requirements in fixed assets for each branch. Such coefficients are usually called capital ratios or capital coefficients. In the USSR they are calculated together with the coefficients of direct and total requirements of labour for the same industries, and they supplement input-output tables. The scheme of the fixed assets balance and the matrix for the calculation of these coefficients are described in the paper together with some numerical illustrations of actual coefficients reached in the calculations.     

PROBLEMS OF RECORDING ENVIRONMENTAL PHENOMENA IN NATIONAL ACCOUNTING AGGREGATES

Is it expedient or possible to modify the content of the national accounting aggregates like GDP so that they reflect also the effect of environmental changes like pollution and noise–this is the question the author tries to answer. He points to some analogies with other national accounting problems, where the basic question is also how far should we go in modifying our measuring scale, the market price, in order to get closer to the measurement of some kind of economic welfare. Reviewing the various possibilities for modifications of the national accounting concepts, the author does not propose any substantial changes. The harm done to the environment as such cannot be measured in monetary terms. The cost of prevention is not a good approximation of the harm done to the environment, since the correlation between these two variables is not strong enough. Nor is the cost of restoration a good measure of the disfunction. Some damages, like noise, lung cancer caused by air pollution, cannot be restored. If–as proposed by some authors–the compensation for the disfunction (e.g. a swimming pool built to compensate for the water pollution) were deducted from GDP, this would not provide a good solution either, since the trouble is the disfunction itself and not the remedying action. (If no swimming pool is built, there is nothing to be deducted?) On the whole, there is no sufficiently sound basis for evaluating the monetary value of environmental damages. The author attaches great importance to getting more information on environmental phenomena. However, he prefers to supplement the national accounting information by a series of physical, chemical, biological, etc., indicators, instead of changing the national accounting concepts themselves.     

EXCHANGE RATE PROBLEMS IN NATIONAL ACCOUNTING OF DEVELOPING COUNTRIES*

Developing countries which typically have import surpluses and inflationary pressures because of insufficient savings are prone to use indirect taxes on imports (Tm) and subsidization of exports (Sx) in order to prevent deterioration of the balance of trade. If these substitutes for devaluation are included in the net indirect tax component of product at current market prices (Ym) the import surplus is likely to be understated, and Ym upward biased. This distortion will be avoided if imports and exports are measured at effective exchange rates (ER), that is, at official rates (OR) plus Tm and Sx respectively, and if (Tm - Sx) is deducted from the net indirect tax component of Ym. Only in this manner become imports and exports consistent with the other uses and resources at market prices and can be articulated with them. At base-year prices the volume index of product at OR diverges from that of ER to the degree that the composition of imports and exports in regard to tax and subsidy rates computed ad valorem significantly changes. Such a case is similar to that of the price indexes of imports and exports moving in diverging proportions: the trade balance at base-year prices will differ from that at current prices. The resulting discrepancies in national accounts have led to proposals of deflating, for example, exports by the price index of imports. Suchlike approaches are incompatible with the principle of national accounting that prices are supposed already to measure substitution values. Deflating exports by import prices means reintroducing substitution values, as does, for example, deflation of incomes by a consumer price index. Correspondingly, since the trade balance at ER conceptually expresses the value of imports at domestic market prices as compared to the corresponding domestic market value of exports, and if at ER the trade balance diverges from that at OR, the former balance has an important meaning (as has the trade balance at base-year prices as compared to that at current prices) and the resulting discrepancy between the two measures should not be removed merely for the sake of accounting smoothness. In contrast to the market price approach, the measurement of product at base-year factor cost is indifferent to the measurement of the trade balance at ER and at OR. It is, therefore, proposed in countries in which part of import taxation and export subsidization substitutes for devaluation, to record imports and exports in the national accounts at effective exchange rates, and to correct the net indirect tax component of product correspondingly. Imports and exports at official exchange rates should be shown within the balance of payments, and the latter separately as a memorandum item.     

SELECTED PROBLEMS OF WELFARE AND PRODUCTION IN THE NATIONAL ACCOUNTS

A number of rather traditional problems relating to the estimation of the national accounts have been raised in the recent literature. This paper examines five of these problems from the point of view of a government statistician working within certain time and resource constraints. Credibility, comprehensibility, theoretical validity, cost and analytical usefulness are the criteria which should aid in deciding how to treat such matters as the extension of the boundaries of economic production, proposed changes in the categorization of both final and intermediate expenses, the treatment of "total" welfare and estimation relating to the so-called underground economy.     

PROBLEMS OF DETERMINING AND MEASURING THE RELIABILITY OF NATIONAL ACCOUNTS IN DEVELOPING COUNTRIES

Most developing countries have compiled national accounts on a regular basis only for the last few years. It has not yet been possible for them to collect many of the statistics necessary to obtain good coverage of their economic activities by methods which would generally be accepted as reliable. Consequently the checks on reliability imposed by the framework of the national accounts are often absent, and the accounts prepared contain many estimates of doubtful quality. These doubts can usually only be removed as statistics collected by better methods become available. This is proving to be a slow process, partly because of the shortage of trained statistical staff and the competing demands of social and demographic statistics and partly because of the inherent difficulties in collecting good statistics from small businesses and traditional households. The need to define traditional households as producers as well as consumers leads to our demanding extra information from this difficult sector. In addition it is often difficult for the national accounts statistician, and even more so for the user, to find out in the time available exactly how some of the statistics with which he is presented were obtained. When this cannot be done it is impossible to assess their reliability. Thus assessing the overall reliability of national accounts in developing countries for even a limited range of uses is at present largely a matter of personal judgment. The information necessary to make more objective assessments rarely exists and hence the problems which developed countries face in using such information are not yet within the experience of most developing countries.     

PROBLEMS OF INTERNATIONAL COMPARISONS OF NATIONAL ACCOUNTING AGGREGATES BETWEEN COUNTRIES WITH DIFFERENT ECONOMIC SYSTEMS

This paper discusses a number of problems arising in comparisons of levels of national accounting aggregates between countries with different economic systems, notably between countries with market economies and countries with centrally planned economies. It considers problems arising from differences in the national accounting concepts used and problems arising from institutional differences, both of which are viewed as relating to the concepts on which the comparison should be based and the adjustment of national data to these concepts. The final section considers index number problems.     

PROBLEMS OF DETERMINING AND MEASURING THE RELIABILITY OF THE NATIONAL ACCOUNTS: HUNGARY'S EXPERIENCES

Economic realities can be described in national accounting only by certain approximative means and presumptions; therefore they cannot be measured with absolute accuracy. However, because of their great importance these investigations must fulfil as far as possible the reliability required for the economic control and planning of the national economy, in accordance with predetermined concepts and methods. The reliability of national accounting is favourable in Hungary, as they are based mostly (92 percent) on the bookkeeping data of enterprises, cooperatives and institutions. The bookkeeping system is uniform in all economic organizations, in conformity with central regulations, and it takes into account the demand of computations for national accounting. Despite these favourable conditions lesser or greater contradictions can be found in the national accounts every year. The absolute measure of the differences is not significant; however, if compared to the annual increase it results in uncertainty of 15 percent. The uncertainty is reduced by the fact that the sign of differences is the same every year. The author classifies the causes of uncertainty in national accounts into four groups: 1. problems of the time shift of the connected economic processes and of their accounting; 2. effect of the enterprise interests; 3. inadequacy of methodological regulation; 4. inaccuracy of data surveys and processing. The study deals with the special factors of inaccuracy occurring in constant price accounting. Inaccuracy of the most important aggregates, for instance that of the volume index of the national income, comes to 0.5-0.7 percent which results, in the case of a yearly 5 percent “real” increase in the index, in reliability limits of 10 to 15 percent. In the concluding part of the study the author points out that in Hungary the unexplored contradictions are not shown as “statistical discrepancy” but they are included in the various aggregates on the basis of considerations discussed in the study.