Isoquant and isocosts

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An isoquant shows all combination of factors that produce a certain output An isocost show all combinations of factors that cost the same amount. Isocosts and isoquants can show the optimal combination of factors of production to produce the maximum output at minimum cost. Definition isoquant An isoquant shows all the combination of two factors …

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Micro-economics

Microeconomic topics Consumer and producer surplus Demand Substitute goods Complements Economies of scale Elasticity Price elasticity of demand Cross elasticity of demand Income elasticity of demand Price elasticity of supply Market equilibrium Production possibility frontiers Positive and normative statements Opportunity cost Specialisation and division of labour Market failure Positive externalities – the benefit to a …

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The Catch-Up Effect

gdp convergence

The catch-up effect (or convergence theory) suggests that poorer countries will experience a higher rate of economic growth and, over time, get closer to the income levels of the developed world. In other words, there will be a reduction in the gap between the rich and the poor because low-income countries have more opportunities to …

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Short-run, long-run, very long-run

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The short run, long run and very long run are different time periods in economics. Quick definition Very short run – where all factors of production are fixed. (e.g on one particular day, a firm cannot employ more workers or buy more products to sell) Short run – where one factor of production (e.g. capital) …

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The Economics of Food

A look at some different topics related to the economics of food. Will a rise in population lead to a shortage of food? I think most people have heard of The Dismal Prophecy of Malthus. (though Economics was termed the ‘dismal science’ for different reasons) Writing in the late eighteenth century, T.Malthus argued that the …

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Explaining Theories of Economic Growth

Different models of economic growth stress alternative causes of economic growth. The principal theories of economic growth include: Mercantilism – Wealth of a nation determined by the accumulation of gold and running trade surplus Classical theory – Adam Smith placed emphasis on the role of increasing returns to scale (economies of scale/specialisation) Neo-classical-theory – Growth …

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Harrod-Domar Model of Growth and its Limitations

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The Harrod Domar Model suggests that the rate of economic growth depends on two things: Level of Savings (higher savings enable higher investment) Capital-Output Ratio. A lower capital-output ratio means investment is more efficient and the growth rate will be higher. A simplified model of Harrod-Domar: Harrod-Domar in more detail Level of savings (s) = …

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