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The Economics of Modern Imperialism

In: Historical Materialism
Authors:
Guglielmo Carchedi Professor Emeritus, Department of Economics and Econometrics, University of Amsterdam Amsterdam The Netherlands

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Michael Roberts Independent Researcher

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https://orcid.org/0000-0002-0929-3044
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Abstract

This work focuses exclusively on the modern economic aspects of imperialism. We define it as a persistent and long-term net appropriation of surplus value by the high-technology imperialist countries from the low-technology dominated countries. This process is placed within the secular tendential fall in profitability, not only in the imperialist countries but also in the dominated ones. We identify four channels through which surplus value flows to the imperialist countries: currency seigniorage; income flows from capital investments; unequal exchange through trade; and changes in exchange rates.

We pay particular attention to the theorisation and quantification of international UE and of exchange-rate movements. Concerning UE, we extend Marx’s transformation procedure to the international setting. We use two variables in the analysis of UE: the organic composition of capital and the rate of exploitation, and we measure which of these two variables is more important in contributing to UE transfers. We research a time span longer than in any previous study. We also introduce the distinction between narrow and broad unequal exchange according to whether two countries are assumed to trade only with each other or also with the rest of the world.

As for the analysis of the exchange rates as a channel for appropriation of international surplus value, we reject conventional approaches because they are rooted in equilibrium theory. We find very strong empirical evidence that exchange rates tend towards the point at which the productivities are equalised. This is only a tendency because this equalisation is inherently incompatible with the nature of imperialism.

Finally, given its topicality, we apply our analysis to the relation between the US and China and find that China is not an imperialist country according to our definition and data.

Abstract

This work focuses exclusively on the modern economic aspects of imperialism. We define it as a persistent and long-term net appropriation of surplus value by the high-technology imperialist countries from the low-technology dominated countries. This process is placed within the secular tendential fall in profitability, not only in the imperialist countries but also in the dominated ones. We identify four channels through which surplus value flows to the imperialist countries: currency seigniorage; income flows from capital investments; unequal exchange through trade; and changes in exchange rates.

We pay particular attention to the theorisation and quantification of international UE and of exchange-rate movements. Concerning UE, we extend Marx’s transformation procedure to the international setting. We use two variables in the analysis of UE: the organic composition of capital and the rate of exploitation, and we measure which of these two variables is more important in contributing to UE transfers. We research a time span longer than in any previous study. We also introduce the distinction between narrow and broad unequal exchange according to whether two countries are assumed to trade only with each other or also with the rest of the world.

As for the analysis of the exchange rates as a channel for appropriation of international surplus value, we reject conventional approaches because they are rooted in equilibrium theory. We find very strong empirical evidence that exchange rates tend towards the point at which the productivities are equalised. This is only a tendency because this equalisation is inherently incompatible with the nature of imperialism.

Finally, given its topicality, we apply our analysis to the relation between the US and China and find that China is not an imperialist country according to our definition and data.

1 Introduction

This work does not aim at submitting a general or complete theory of imperialism. Nor is it a review or assessment of present and past debates on imperialism.1 Nor does it aim at providing an exhaustive coverage of all the relevant issues. The aspects of modern imperialism dealt with here are far from being comprehensive. Our focus is on some key new economic and financial traits of modern imperialism with special emphasis on the relations between the imperialist and the dominated countries through the prism of Marx’s labour theory of value.

Our stress on modern imperialism does not deny the persistent existence of colonialism. Colonialism and modern imperialism do not exclude each other. Colonialism is the appropriation of natural resources, military occupation, the direct state control of colonies and the stealing by the imperialist countries of commodities not produced capitalistically. But colonialism contains in itself the germs of modern imperialism. This is the appropriation by capitals in the imperialist countries of the surplus value produced by capitals in the colonies through the trade of the commodities with high technological content produced in the imperialist countries for the capitalistically produced raw materials or industrial goods produced with lower technological content in the dominated countries. The result is unequal exchange (henceforth, UE), the appropriation of international surplus value through international trade. This modern form of appropriation of international surplus value is not absent in colonialism. But it is not the most important one. Modern imperialism penetrates and develops within colonialism until it becomes the dominant form. Under modern imperialism, technology has become the new battlefield.

The above could be misinterpreted as economism. But this charge would be unwarranted. We focus on the economy’s determining features, which make possible the existence of other extremely important, but determined traits, like military and political domination, as well as cultural and ideological pre-eminence.2 These other features are not simply added to the economic ones in order to obtain a more complete picture. Their interrelation is dialectical. Particularly important, military and ideological supremacy is not simply an appendage of economic power. Rather, economic power is determinant because it is the condition of existence of the military and ideological power and the latter is determined because it is the condition of reproduction (or supersession) of the former. Military, political and ideological power, even if determined by superior technology and economic power, is essential for economic power’s reproduction.3

2 The Wider Context

The production and appropriation of international surplus value should be framed within the context of the post-WWII tendential long-term fall in world profitability. This fall affects both the imperialist countries (henceforth, IC) and the dominated countries (henceforth, DC) even if in different measures.4

Official statistics focus on GDP rather than on profitability figures. Nevertheless, they are telling. They show the tendential fall of the world GDP growth rate (Figure 1).

Figure 1
Figure 1

G20 countries’ annual real GDP growth, 1950–2019 (%)

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, author’s calculations. Please note that all calculations for the Figures are explained in Appendixes 1 and 2

The falling rate of GDP growth for the G20 countries is puzzling to conventional macroeconomics. Usually, the culprit is found in falling consumer spending and investment growth. But this in turn must be explained. A further step back in the explanation focuses on changes in ‘consumer confidence’ and in ‘animal spirits’. But these too must be explained. In the end, conventional macroeconomics’ attempts to explain the falling rate of growth of GDP are nothing more than clutching at straws.

Not so in Marx’s theory. In it, the key variable is the rate of profit. Put in its most general terms, if total assets grow, due to the labour-shedding nature of new technologies, employment grows less (or even falls) than the growth in total assets. Since only labour produces value and surplus value, less surplus value is generated relative to total investments. The rate of profit falls and less capital is invested. Thus, the rate of change of the GDP falls. This is not a linear movement, it is the tendency. There are also many counter-tendencies, especially the rising rate of surplus value. But empirical research shows that the latter cannot hold back the former (Figure 2).

Figure 2
Figure 2

G20 rate of profit (%)

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, authors’ calculations

The slowdown in real GDP growth is particularly notable for the imperialist bloc of countries (Figure 3).5

Figure 3
Figure 3

Annual real GDP growth in imperialist bloc (%)

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, authors’ calculations

This slowing trend in real GDP growth is matched by the secular decline in the profitability of capital in the imperialist bloc (Figure 4).

Figure 4
Figure 4

Imperialist bloc rate of profit (%)

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, authors’ calculations

The pie is growing ever more slowly. In the wake of this long-run persistent economic deterioration in both output growth and profitability, the imperialist countries are like hungry wolves, which when the game gets scarcer, not only take an extra chunk out of the weaker prey, but also increasingly cut each other’s throats.

The inflow of surplus value into the imperialist countries from the rest of the world has helped to slow down the deterioration in output growth and profitability, but has not reversed it. The imperialist countries get a larger share of the shrinking quantity of surplus value at the cost of the dominated countries. But this larger share can reverse the fall in profitability only to the point at which this fall resumes. Nevertheless, the imperialist appropriation of surplus value through unequal exchange in trade (see below) is an important counter-tendency to the decreasing growth of surplus value in the imperialist countries.6

Thus, our task is not simply to document the thirst for surplus value of the so-called ‘global North’, but rather to explain this increasing thirst in terms of the progressive drying-up of the source of surplus value in the imperialist nations. These countries, to quench their thirst for profits, tap increasingly into the fountain of the dominated countries.

Marx focused mainly on the falling rate of profit within a nation. Within it, the national rate of profit falls because sectors compete by introducing labour-saving and productivity-increasing new technologies, thus raising the organic composition of capital (OCC henceforth). We aim at extending Marx’s analysis and applying it to international trade and investment between the imperialist and the dominated bloc. We consider explicitly the different rates of surplus value as one of the two basic determinants of UE.

Our empirical research reveals the specificity of the law of profitability under imperialism. The downward movement in profitability is due to the fact that (a) both blocs’ rates of profit fall; (b) the dominated countries’ profitability is persistently above that of the imperialist ones because of their lower OCC; and (c) the dominated countries’ profitability, while persistently higher than in the imperialist countries, falls more than in the imperialist bloc.

Since 1974, the rate of profit of the imperialist (G7) bloc has fallen by 20%, but the higher rate of the dominated bloc has fallen by 32%. This leads to a convergence of the two blocs’ profit rates over time (Figure 5).

Figure 5
Figure 5

Rate of profit in imperialist and dominated blocs (%)

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, authors’ calculations

Development economics argues for a convergence upward, i.e., that the ‘under-developed’ or ‘emerging market’ economies approach the level of wealth of the ‘developed’ ones. As Figure 5 shows, the two blocs do converge, but downwards in profitability. In spite of the different pace at which the rate of profit tends to fall in the imperialist and the dominated countries, the cause is the same, namely the inability of the counter-tendencies, especially of the increase in the rate of surplus value, to counter sufficiently the rise in the OCC, as Marx’s law of profitability argues.7

3 Measuring Productivity

In the Marxist analysis of modern capitalism and thus in this work, the focus is on competition through technological development. Capitals compete basically by introducing new techniques, which are incorporated into new means of production, or non-financial assets. New techniques on the one hand shed labour so that less value and surplus-value is produced. On the other hand, due to greater productivity, less labour produces a bigger output of use values. New technologies are both labour-shedding and productivity-increasing. The primary role of technological competition holds both within and between nations.

But between nations there is a new actor on the scene: the different countries’ rates of exploitation. Here Marx introduces an important difference. While within a nation we can assume a tendential equalisation of the different sectors’ rates of exploitation, ‘On the universal market … the integral parts are the individual countries. The average intensity of labour changes from country to country; here it is greater, there less. These national averages form a scale, whose unit of measure is the average unit of universal labour.’8 So, if countries are considered, what counts is the average intensity, etc. of labour within each country. These national averages form a scale and thus do not aggregate in an international average because the factors that make possible the formation of an average within a country (labour’s freedom of movement, trade unions, etc.) are inoperative across national boundaries. There is no tendential equalisation of the rates of surplus value in the universal economy. This bears directly on the notion of productivity.

Productivity is usually defined as GDP per unit of labour. This is unsuitable for our purposes. The numerator (GDP) can rise both because more advanced technologies increase the quantity of use values per unit of labour and because of an increase in the rate of exploitation, i.e., by raising the length of the working day and the intensity of labour. But only the former measures productivity. The latter measures exploitation. This is stressed by Marx: the productivity of labour ‘is expressed in the relative extent of the means of production that one worker … turns into products’.9 There is no mention of the effect of exploitation on output.

So, assets must replace GDP in the numerator of the productivity ratio. This is the ratio of the mass of assets per unit of labour. This is what Marx calls the technical composition of capital (henceforth, TCC). Since new technologies are productivity-increasing but labour-shedding, the TCC tends to grow.

However, if assets are considered as use values, the productivity ratio cannot be quantified: use values are by definition non-quantitative and non- commensurable. For the TCC to be quantified, assets must be expressed in value and thus money terms. Then the productivity ratio is the price of assets divided by labour units, as in Figure 6.

Figure 6
Figure 6

Technical composition of capital in the imperialist and dominated blocs, $bn per employee

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.0, authors’ calculations

The imperialist bloc has a consistently much higher productivity than the dominated bloc and the gap has tendentially widened from 1950 up to the 2007–8 crisis, at which point the TCC has started to rise faster in the dominated bloc. The narrowing of the gap from 2008 has probably to do with the fact that around that time China’s investments in fixed new capital (and thus in assets with a higher TCC) started to close the gap with those of the US (see Figure 24 below).

Productivity ratios can be compared both within and between sectors. But they are meaningful only if they indicate profitability. This applies only within sectors where the outputs of capitals with different productivities sell at tendentially the same price. Then the higher productivity capitals sell to other sectors a higher output than that of the lower productive capitals at the same price. The former make higher profits at the expense of the latter. The same does not apply to inter-branch competition. Now it is the rates of profit that are tendentially equalised, not prices. But for the rates of profit to be computed, labour units must be expressed as wages. Then the productivity ratio is the ratio of assets prices (value) to wages. This is the value composition of capital. It follows that the value composition of capital is determined by, but is not equal to, the TCC. Marx calls the value composition of capital as determined by the TCC the organic composition of capital (henceforth, OCC). The TCC and the OCC differ because usually changes in the value of assets do not reflect (are not equal to) changes in the mass of assets. The same applies to the value and quantity of the labour power employed. Nevertheless, the OCC, since it is determined by the TCC through the value composition, is the measure of the productivity of labour when different sectors or nations are compared. However, the OCC is not a full measure of profitability because, as we shall see below, profitability is determined also by the rate of exploitation.

The OCC of the IC has been consistently higher than that of the DC (Figure 7). Since 1970, the IC OCC has risen 50% while the OCC of the DC has risen 20%. Up to the early 2000s, the DC OCC was closing the gap with the IC. But after that there was a significant decline in most DC countries (excepting China).

Figure 7
Figure 7

The organic composition of capital in the imperialist and dominated blocs

Citation: Historical Materialism 29, 4 (2021) ; 10.1163/1569206X-12341959

Source: Penn World Tables 10.1, authors’ calculations

Indeed, Figure 8 corrects the widespread opinion that wages rates in the DC