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IX. Complete the article with prepositions where necessary: Microeconomics and macroeconomics

Microeconomics looks __ (1) __ interactions through individual markets, given scarcity and government regulation. A given market might be for a product, say fresh corn, or the services of a factor __ (2) __ production, say bricklaying. The theory considers aggregates __ (3) __ quantity demanded by buyers and quantity supplied by sellers __ (4) __ each possible price per unit. It weaves these together to describe how the market may reach equilibrium as to price and quantity or respond __ (5) __ market changes over time.

This is broadly termed supply and demand analysis. Market structures, such as perfect competition and monopoly, are examined as to implications __ (6) __ behavior and economic efficiency. Analysis __ (7) __ change __ (8) __ a single market often proceeds from the simplifying assumption that behavioral relations in other markets remain unchanged, that is, partial-equilibrium analysis. General-equilibrium theory allows __ (9) __ changes __ (10) __ different markets and aggregates across all markets, including their movements and interactions toward equilibrium.

Macroeconomics examines the economy as a whole to explain broad aggregates and their interactions "top down," that is, using a simplified form __ (11) __ general-equilibrium theory. Such aggregates include national income and output, the unemployment rate, and price inflation and subaggregates like total consumption and investment spending and their components. It also studies effects __ (12) __ monetary policy and fiscal policy.

__ (13) __ at least the 1960s, macroeconomics has been characterized __ (14) __ further integration as to micro-based modeling of sectors, including rationality __ (15) __ players, efficient use __ (16) __ market information, and imperfect competition. This has addressed a long-standing concern __ (17) __ inconsistent developments of the same subject.

Macroeconomic analysis also considers factors affecting __ (18) __ the long-term level and growth __ (19) __ national income. Such factors include capital accumulation, technological change and labor force __ (20) __ growth.

X. Read the text and choose the correct word or words from a, b, c or d to fill in each gap: Macroeconomic analysis

Macroeconomic analysis broadly focuses on three things: national output, unemployment and inflation. Output, the most important concept of macroeconomics, refers to the total amount of goods and services a country produces, commonly known as the gross domestic product. The figure is like a snapshot of the economy at a certain point in time.

When referring to GDP, macroeconomists tend to use __ (1) __ GDP, which takes inflation into __ (2) __, as opposed to nominal GDP, which __ (3) __ only changes in prices. The nominal GDP figure will be higher if inflation goes up from year to year, so it is not necessarily indicative of higher output levels, only of higher prices.

The one __ (4) __ of the GDP is that because the information has to be collected after a specified time period has finished, a figure for the GDP today would have to be an estimate. GDP is nonetheless like a stepping stone into macroeconomic analysis. Once a __ (5) __ of figures is collected over a period of time, they can be compared, and economists and investors can begin to decipher the business __ (6) __, which are made up of the __ (7) __ periods between economic recessions (slumps) and expansions (booms) that have occurred over time.

From there we can begin to look at the reasons why the cycles took place, which could be government policy, consumer behavior or international phenomena, among other things. Of course, these figures can be __ (8) __ across economies as well. Hence, we can determine which foreign countries are economically strong or weak.

Based on what they learn from the past, analysts can then begin to __ (9) __ the future state of the economy. It is important to remember that what determines human behavior and __ (10) __ the economy can never be foreseen completely.

1. A. real B. retail C. nominal D. normal

2. A. attention B. account C. confidence D. possession

3. A. retains B. reflects C. receives D. rebuilds

4. A. advantage B. advance C. backside D. drawback

5. A. line B. graphic C. series D. numbers

6. A. cycles B. circles C. rounds D. pattern

7. A. alternating B. altering C. constant D. substantial

8. A. changed B. compared C. assumed D. predicted

9. A. forecast B. make up C. consist D. foremost

10. A. endlessly B. accidentally C. concluded D. ultimately

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