Economists assume that individuals act in their own self-interest to maximize their utility or well-being. This is a foundational assumption in economic modeling, not to be confused with selfishness. It simply implies that individuals make choices that they believe will provide them with the greatest personal benefit, which serves as the primary driver for market transactions and resource allocation in a standard economic framework.

Adam Smith is universally acknowledged as the father of modern economics. While he was also a moral philosopher, his contributions to economic theory through his seminal work, 'The Wealth of Nations', define his primary legacy. He systematically analyzed how markets function, the importance of competition, and the benefits of trade, which established economics as a distinct and rigorous field of study separate from general philosophy.

Max Weber identified status as a dimension of social stratification based on social honor or prestige. In modern sociological analysis, this is frequently operationalized through ranked occupational positions, as a person's profession serves as a primary signal of their social standing and the level of respect they command within the broader community.

Equity represents the ownership interest in an asset. It includes capital raised through the issuance of shares (stock) and the net value of assets remaining after all debts and obligations have been subtracted. Both definitions provided correctly identify the fundamental nature of equity as the residual claim on assets.

A society is the most extensive social group, encompassing all individuals who share a common culture, territory, and set of social institutions. While smaller groups like families, triads, or primary groups exist within a society, the society itself represents the broadest framework of social organization, providing the overarching context for all other human interactions and institutional structures.

Macroeconomics is the branch of economics that deals with the structure, performance, behavior, and decision-making of an economy as a whole, rather than individual markets. It analyzes aggregate indicators such as GDP, unemployment rates, national income, and price indices to understand how the entire economy functions and how government policies can influence these broad economic outcomes.

Max Weber argued that the ascetic values inherent in certain Protestant denominations, particularly Calvinism, fostered a work ethic that encouraged capital accumulation. By viewing hard work and success as signs of divine favor, these religious values provided a moral justification for the pursuit of wealth, which Weber identified as a key driver in the development of modern Western capitalism.

Adequate economic growth is a multifaceted goal. It involves ensuring that the economy expands fast enough to maintain living standards despite population growth, increasing per capita output (GNP), and often targeting specific sustainable growth rates to ensure long-term prosperity.

The claim that simple societies lack social differences is incorrect because all human societies, regardless of complexity, exhibit some form of differentiation based on factors like age, gender, or individual skill. While they may not have complex class structures, they are never entirely devoid of social distinctions or roles.

Adam Smith, an 18th-century Scottish philosopher, is considered the father of modern economics. His 1776 book, 'An Inquiry into the Nature and Causes of the Wealth of Nations', introduced the concept of the 'invisible hand' and argued that individuals pursuing their own self-interest can contribute to the overall economic prosperity of society. His work laid the groundwork for classical economic theory, emphasizing free markets, division of labor, and limited government intervention.