Key Issues in Political Economy: Imperialism, Dependency, and Class

Why do some nations grow rich while others remain trapped in poverty? Why do governments often seem to serve the interests of big business rather than ordinary citizens? Political economy tackles exactly these questions by studying how economic power and political power shape each other. Three issues sit at the very centre of this field: imperialism, dependency, and the relationship between the state and social classes. Together, they help explain how global capitalism produces winners and losers, and why those outcomes are not accidents but features of the system itself. Let us unpack each of these ideas and see how they connect.

What political economy actually studies 🔗

Political economy is the study of how politics and economics interact. It rejects the idea that markets operate in a vacuum, separate from power. Instead, it asks who controls resources, who makes the rules, and who benefits from economic decisions. The Marxist tradition has been especially influential here, viewing the economic mode of production as the foundation that shapes a society’s political and intellectual life. This is the well-known base and superstructure model, where economic relations form the base on which political institutions rest.

Once you accept that economics and politics are intertwined, three big questions follow naturally. How does capitalism expand beyond national borders? Why does this expansion create global inequality? And how does power within a society get distributed among different classes? These questions lead us directly to imperialism, dependency, and class.

Theories of imperialism 🔗

Imperialism refers to the expansion of economic and political control by powerful nations over weaker territories. For political economists, this expansion is not merely about ambition or national glory. It is driven by the internal logic of capitalism itself.

Hobson and the problem of surplus 🔗

The English economist J.A. Hobson laid the groundwork in his 1902 book Imperialism: A Study. Writing in the aftermath of the South African (Boer) War, he argued that excessive saving combined with income inequality created political pressure for imperial expansion rather than for domestic investment. In simple terms, wealthy capitalists accumulated more money than they could profitably invest at home, so they pushed their governments to acquire overseas markets and investment opportunities. Hobson believed this was avoidable. A more equitable distribution of income, he suggested, would remove the economic compulsion behind empire.

Lenin and the highest stage of capitalism 🔗

Vladimir Lenin built on Hobson’s analysis but reached a far more radical conclusion. In his 1916 work Imperialism: The Highest Stage of Capitalism, Lenin argued that imperialism was the inevitable result of monopoly capitalism, where the growth of trusts, cartels, and concentrated finance drove the great powers toward overseas conquest. Unlike Hobson, Lenin disagreed that capitalism could be separated from imperialism. He saw empire as a stage that capitalism must pass through, eventually leading to its own collapse. This framing made imperialism central to the Marxist explanation of war and global conflict.

Why this matters 🔗

The theories of imperialism gave political economists a tool to explain global inequality as a structural outcome rather than a coincidence. From this view, the concentration of capital in fewer hands within rich countries pushed those countries to dominate poorer regions, draining resources and shaping the world economy in ways that persist today. Later thinkers extended these ideas, and even contemporary scholars argue that imperialism, in new forms tied to economic and geopolitical competition, is far from dead.

Dependency theory 🔗

If theories of imperialism explained how capitalism expanded outward, dependency theory explained what that expansion did to the countries on the receiving end. Emerging from Latin America in the mid-twentieth century, it directly challenged the comfortable assumption that poorer nations were simply “behind” and would eventually catch up.

The development of underdevelopment 🔗

The German-American economic historian Andre Gunder Frank gave the theory its most memorable phrase: the “development of underdevelopment.” Frank argued that underdevelopment was not an original or natural condition. Instead, it was actively produced by the global capitalist system. Poorer countries were not waiting to develop; they were being kept poor by their place in the world economy. He showed that periods when regions were less connected to the global economy, such as during world wars, often saw stronger local economic growth, suggesting that integration itself could be harmful.

Core and periphery 🔗

The heart of dependency theory is the division of the world into a core and a periphery. The core consists of wealthy, industrialised nations; the periphery consists of poorer nations that supply raw materials and cheap labour. According to Britannica’s account of the theory, underdeveloped countries sell cheap raw materials to advanced economies, which transform them into finished goods and sell them back at high prices. This drains the periphery of capital it might otherwise use to upgrade its own productive capacity, creating a vicious cycle that keeps the core rich and the periphery poor.

Unequal exchange and neo-colonialism 🔗

This imbalanced trade relationship is often called unequal exchange. Even after formal colonialism ended, the relationship continued in a new form. Many newly independent nations remained economically tied to their former colonial powers, a condition described as neo-colonialism. Dependency theorists disagreed on the solution. Radical thinkers like Frank argued that escaping dependency required building a non-capitalist national economy, while moderate thinkers like the Brazilian sociologist Fernando Henrique Cardoso believed some development was still possible within the system, an idea sometimes called dependent development.

The state and class 🔗

The third major issue in political economy turns inward, examining power within a society rather than between nations. Who really controls the government? Does the state serve everyone equally, or does it primarily protect the interests of a dominant class?

Marx’s view of class 🔗

For Karl Marx, history is fundamentally a story of class conflict. He identified two primary classes in capitalist society: the bourgeoisie, who own the means of production, and the proletariat, the much larger working class who must sell their labour to survive. This relationship is exploitative because capitalists extract surplus value from workers’ labour. The class that owns the means of producing wealth becomes the ruling class, and its dominance shapes the political and economic character of the entire era.

Is the state just a tool of the ruling class? 🔗

This question produced one of the most important debates in modern political economy. The Marxist tradition holds that the state generally acts as an instrument of the ruling class, protecting property and maintaining the dominance of those who own capital. But there are two distinct ways of understanding how this works.

The instrumentalist view, associated with Ralph Miliband, argues that the capitalist class uses the state directly as its instrument because its members occupy key positions and share common interests. The structuralist view, associated with Nicos Poulantzas, counters that the class background of individual officials is almost incidental. The state serves capitalist interests because of its position in the objective structure of capitalist society, functioning to reproduce capitalism regardless of who happens to be in office. This famous Miliband-Poulantzas debate shaped how scholars think about state power for decades.

Relative autonomy of the state 🔗

Even Marx and Engels recognised that the state was not always a simple puppet. They argued that under certain conditions the state could achieve a degree of independence from all social classes, a concept later refined into the idea of the relative autonomy of the state. This means the state can sometimes act against the short-term wishes of particular capitalists in order to preserve the long-term stability of the system as a whole.

Class and the state in India 🔗

This framework is not just abstract theory. The economist Pranab Bardhan applied it directly to India in his 1984 classic The Political Economy of Development in India. Bardhan identified three dominant proprietary classes: industrial capitalists, rich farmers, and professionals in the public sector. He argued that these classes constantly bargain and compete for a share of public resources. Crucially, this very competition among heterogeneous elites gives the Indian state a measure of relative autonomy, allowing it to exert its own power rather than simply obeying one class. Bardhan’s framework remains a powerful lens for understanding crony capitalism, agrarian distress, and the politics of subsidies that continue to dominate economic debate.

How these issues connect 🔗

These three issues are not separate boxes. They form a single interconnected picture of how global capitalism operates. Theories of imperialism explain how capitalism expands beyond borders in search of profit. Dependency theory explains how that expansion locks poorer nations into a subordinate position within the world economy. And class theory explains how, within each society, economic power translates into political power, allowing dominant classes to shape state policy in their favour.

Put together, they reveal a system in which inequality between nations and inequality within nations reinforce each other. The wealth of the global core and the poverty of the periphery, the dominance of capital and the struggles of labour, all flow from the same underlying logic of capitalist accumulation. Understanding these connections is essential for anyone trying to make sense of why the global economy looks the way it does, and why political power so often tracks economic power.

What do you think? Does the relative autonomy of the state mean governments can genuinely act in the public interest, or are they always constrained by the interests of dominant classes? And in an era of global trade and digital economies, do the core-periphery patterns described by dependency theory still hold, or has the world economy moved beyond them?

References

1. https://en.wikipedia.org/wiki/Marxism
2. https://www.ebsco.com/research-starters/literature-and-writing/hobson-critiques-imperialism
3. https://en.wikipedia.org/wiki/Imperialism_(Hobson_book)
4. https://en.wikipedia.org/wiki/Theories_of_imperialism
5. https://www.ebsco.com/research-starters/diplomacy-and-international-relations/dependency-theory
6. https://www.britannica.com/topic/dependency-theory
7. https://www.globalsouthstudies.org/keyword-essay/latin-american-dependency-theory/
8. https://en.wikipedia.org/wiki/Marx%27s_theory_of_class
9. https://en.wikipedia.org/wiki/Marx%27s_theory_of_the_state
10. https://en.wikipedia.org/wiki/Instrumental_Marxism
11. https://en.wikipedia.org/wiki/Miliband%E2%80%93Poulantzas_debate
12. https://en.wikipedia.org/wiki/Pranab_Bardhan