Karl Marx's historical materialism is a methodological approach that focuses on the material conditions of society, such as economic systems and class struggle. While the French Revolution, the rise of industrial capitalism, and various labor movements provided the empirical context for his analysis, spiritual reasoning is fundamentally opposed to his materialist framework, which prioritizes physical and economic realities over metaphysical or spiritual explanations.

Surplus labor theories, such as the Lewis model, assume that in traditional agricultural sectors of developing countries, there is an excess of labor relative to land and capital. Because of this surplus, the marginal productivity of labor is effectively zero or negligible. This implies that workers can be removed from agriculture to work in industry without reducing total agricultural output.

This scenario demonstrates the power of compound growth. Even small differences in annual growth rates lead to significant disparities in real GDP per capita over long periods. The country growing at 4% will experience exponential growth, causing its standard of living to diverge significantly from the country growing at 2%. This is a fundamental concept in economic growth theory, illustrating how compounding affects long-term prosperity.

Economic growth is generally pursued because it leads to an increase in real GDP per capita. This expansion allows for higher average incomes, greater availability of consumer goods and services, and improved standards of living for the population at large.

Charles Kindleberger is widely recognized for his definition of economic growth, which focuses on the expansion of an economy's total output of goods and services. This perspective highlights the quantitative increase in production capacity over time, serving as a fundamental concept in development economics for measuring national progress and economic health.

The economies of Singapore, Hong Kong, Taiwan, and South Korea are famously known as the 'Four Asian Tigers' or 'Four Tigers' due to their rapid industrialization and high growth rates between the early 1960s and 1990s. While 'Little Tigers' and 'Four Dragons' are sometimes used colloquially, 'Four Tigers' is the standard academic terminology for this specific group of newly industrialized countries.

The vicious circle of poverty theory posits that low per capita income leads to low levels of savings and investment. Because investment is necessary for capital accumulation and productivity growth, the lack of it keeps income levels low. This creates a self-reinforcing cycle where a country remains poor because it is poor, preventing the transition to a higher level of economic development.

During the 1980s and 1990s, often associated with the 'Washington Consensus,' there was a significant shift toward neoclassical economics in development policy. This approach emphasized market liberalization, privatization, fiscal discipline, and trade openness. It moved away from earlier structuralist or interventionist models, advocating for the efficiency of market mechanisms to drive economic growth in developing nations.

Economic history shows that growth rates are not strictly tied to initial income levels. During the mid-20th century, several developing nations, often referred to as the 'Asian Tigers,' experienced rapid industrialization and GDP growth that significantly outperformed the growth rates of many established, higher-income Western nations. This phenomenon highlights the potential for 'catch-up' growth in developing economies through effective policy implementation and export-oriented strategies.

High rates of domestic savings allow for significant capital accumulation, which is then channeled into productive investments. This process increases the capital stock per worker, thereby enhancing labor productivity and fostering sustained economic growth, a strategy famously utilized by the 'Asian Tigers' during their development phases.