Economics Concepts and Theories

Economists define a market as a collection of buyers and sellers who transact in a particular product category - it's not just about customers or experiences. 'Market' is the formal economic term for this concept. A customer is just one side of the transaction. Experience is a marketing dimension, not the collection itself.

In economics, agricultural products and mineral products are classified as commodities because they are fungible goods that can be traded on exchanges. Collectibles are unique items valued for rarity, while durable goods are long-lasting manufactured products like appliances.

Open Market Operations (OMO) involve buying and selling of government securities by the central bank to control money supply, making it a key instrument of Credit (Monetary) Policy. Fiscal Policy (B) deals with government revenue and expenditure, while Income Policy (A) and Labour Policy (D) are unrelated to OMO.

Edmund S. Phelps won the 2006 Nobel Prize in Economics for his analysis of intertemporal tradeoffs in macroeconomic policy. He is a professor at Columbia University. The other options are incorrect: Aumann and Schelling won in 2005 for game theory, and there is no Nobel laureate named Raymond D Junior in Economics. Note: Option A spells Phleps instead of Phelps.

Gresham's Law is an economic principle stating that 'bad money drives out good money' - when two forms of commodity money are in circulation but have equal face value, the money with higher intrinsic value will be hoarded or exported, leaving only the debased money in circulation. Named after Sir Thomas Gresham, this principle explains currency debasement phenomena throughout history. The other options are fictional or incorrect.

Keynesian economics, developed by John Maynard Keynes, was widely adopted to combat the 2008 recession. This approach advocates for government intervention through fiscal stimulus and monetary policy to boost aggregate demand during economic downturns. Many governments implemented large-scale stimulus packages based on Keynesian principles.

Economic Planning indeed involves the allocation and management of available resources to achieve developmental objectives. It requires assessing what resources a nation has - natural, human, financial - and planning their optimal utilization. The False option is incorrect because resource allocation is fundamental to any economic planning process. Planning cannot exist without considering what resources are available to be deployed.

Kagaku (科学) is the Japanese word for 'science'. The term appears in academic and formal contexts to refer to scientific disciplines and research. The other options (literature, economics, psychology) are distinct fields with their own Japanese names.

Jeffrey Sachs, the renowned economist, wrote 'Common Wealth: Economics for a Crowded Planet' (2008), which addresses sustainable development and global economic challenges in the context of climate change and population growth. The book argues for coordinated global action to achieve prosperity while protecting planetary resources.

Jevons Paradox, named after economist William Stanley Jevons, states that technological progress that increases the efficiency of resource use tends to increase (rather than decrease) the rate of consumption of that resource. It was observed in coal consumption during the Industrial Revolution.

In economics, utility specifically refers to the satisfaction or benefit a consumer derives from consuming goods and services, measured in utils. Usefulness is a broader concept about whether something serves a practical purpose. While related, utility is a technical economic term focused on consumer satisfaction, not general usefulness.

Kapitalismus (capitalism) is a masculine noun in German, requiring 'der'. Isms and abstract concepts ending in -ismus are always masculine in German.

The first basic principle of Gandhian economic thought is trusteeship, i.e. an individual or group of individuals is free, not only to make a decent living through an economic enterprise, but also to accumulate their surplus wealth above what is necessary to meet the basic needs and investment, should be held as a trust for the welfare of all, particularly of the poorest and most deprived.