Macroeconomics Part 2 Essay Example | Topics and Well Written Essays - 1500 words

Macroeconomics Part 2 - Essay Example Demand pull inflation is caused by a rise in aggregate demand which means persistent rightward shifts in the aggregate demand curve. The rise in aggregate demand may occur due to rises in consumer demand, in the level of government expenditure, in investment by firm, in foreign residents demand for the country’s exports or a combination of these four (Sloman 1997). Demand pull inflation is usually linked to a booming economy. When the economy is in recession, demand pull inflation tends be low. However, when the economy is near the peak of the business cycle, demand pull inflation is likely to be high. The graph above illustrates the rise in aggregate demand by a rightward shift in the aggregate demand curve, from AD1 to AD2. Prices rise from P1 to P2 and output rises from Q1 to Q2 resulting in inflation. On the other hand is the cost push inflation where high costs force firms to increase their prices (Gillespie 2001). Aggregate supply is the total amount of goods and service s produced at a given price level in an economy. When there is a fall in the aggregate supply of goods and services caused by an increase in the cost of production, cost-push inflation occurs.  Cost-push inflation essentially means that prices have rose by an increase in the costs of any of the four factors of production that is; labor, capital, land or entrepreneurship given that firms are already managing at maximum capacity. With increased costs and maximized productivity, firms cannot sustain profit margins by producing the same quantity of goods and services. Consequently, the increased costs are borne by consumers, causing an upward shift in the general price level. The graph above shows the amount of output that can be attained at the given price level.  As production costs escalate, aggregate supply falls from AS1 to AS2 (given production is at maximum capacity), causing the prices to increase from P1 to P2 and total output to decrease from Q1 to Q2. Demand pull and cost push inflation can occur together, since price rises can be caused both by increases in aggregate demand and by independent causes pushing up costs. Similar is the case with the UK’s economy. The UK Consumer Prices Index (CPI) annual inflation rate went up to 4.5% in April, from 4% in March (BBC 2011). As always, there are elements of both types of inflation in the UK’s economy. With the ongoing recovery and a slight increase in demand, there is a small level of demand pull inflation. However, the majority of the effect is cost-push. The increase in VAT is one of the major reasons of inflation in this economy, as well as increases in non-discretionary items such as fuel, utilities, housing and food. These are all necessities whose price hikes act more like an additional tax. The figure below shows the change in the UK’s annual quarterly rate of inflation over the last 15 years. b) Keeping inflation down to a desirable moderate level is an important contributive factor to sustain economic growth. This is because it serves as an incentive for increasing output, investments and unemployment. A rapid rate of inflation disrupts regular economic life leading to a wider income gap, falling output and unemployment. However, the remedy for such inflation depends on the cause. Therefore, government must diagnose its causes before implementing policies. Government policies may pull the rate of inflation down through contractionary fiscal and monetary policies. Monetary policy covers government changes in either the supply of

Alternative energy Research Paper Example | Topics and Well Written Essays - 1250 words

Alternative energy - Research Paper Example solution to the most critical problems that the world has today, especially in reducing the concentration of carbon dioxide in the atmosphere, which deteriorates global warming (International Energy Agency, "Solar Energy Perspectives"). Solar energy is, by far, the most experienced form of energy due to its accessibility, and the ease of converting solar energy to electricity. Many solar energy conversion technologies present sustainable and promising potentials in providing renewable energy that does not only reduces the cost of electricity but could also deliver effective mitigating solutions to the environmental problems we have today. The International Energy Agency expresses its confidence over the positive impacts that solar energies could bring to the world. The agency states that the creation of low-cost, unlimited and untainted solar energy technologies will have "huge longer-term benefits" (International Energy Agency, "Solar Energy Perspectives"). The energy agency adds that the stable generation of solar power through the use of solar energy conversion technologies will ensure energy security in many countries; and will cut dependence on power plants that use radioactive materials, which are potentially pernicious to human health. It will also lower down the energy cost, improve sustainability, will help reduce pollution, and will lessen the effects of climate change. Therefore, the agency stresses that since this innovative approach requires substantial amount of financial investments, a careful planning must be employed for an efficient expenditure of financial resources (International Energy Agency, "S olar Energy Perspectives"). Normally, the Earth obtains a sizeable load of radiation from the sun. On average, our planet takes at least 174 pent watts of solar energy (Smil 240). Of this, 70 percent is absorbed by the Earth by the clouds, oceans, and ground forms including the mountains and the plains among others. The sun’s rays could either be