Archive for May, 2008

May 18 2008

2008 Macroeconomics Free Response Questions – first impressions…

Published by under AP Economics

AP Macroeconomics 2008 FRQ form BThree days ago students all over the world sat for the Macro and Microeconomics Advanced Placement exams. 48 hours later, the College Board released the free response questions on their website. Being at an international school SAS students took “Form B” of the exam.

In this post I will reflect on the FRQs from the macroeconomics exam.

First, question 1: An imaginary country operating at full employment experiences a deficit financed increase in government spending.

Part (a) asks students what the impact of the new government spending will be on aggregate demand and aggregate supply. Easy enough! Since “G” is a component of AD, an increase in government spending will shift AD out while (In macroeconomics): The period of time over which wages and prices are relatively inflexible. A fall in aggregate demand will lead to unemployment and recession in the short-run. Due to the inability of the nation's producers to reduce wages paid to worker, they must lay workers off to reduce costs as demand falls.');" onmouseout="tooltip.hide();">short-run aggregate supply remains the same.

Part (b) is simply a graphical representation of the answer to part (a), asking students to show the effect on output and price level. The new government spending will increase output and the price level.

So far, the question has been very straightforward and what I’d consider easy for even weaker students. In part (c), the question asks students to show the impact that the government’s borrowing from the public has on the real interest rate and the market for loanable funds. Here I am guessing the AP readers will accept either a leftward shift of supply or a rightward shift of demand. The question does not ask students to explain the shift, only “show”. Either demand or supply can shift when the government increases its deficit through issuing new bonds, as I explained HERE.

Finally, parts (d) and (e) broaden the scope of this question to international economics, a section of the syllabus that was not traditionally included in the long free response questions, but has been for two years now, and I expect it will continue to be a theme of the FRQs in the future.

Part (d) asks what effect higher real interest rates will have on supply of the country’s currency on foreign exchange markets and the value of the currency. My answer would be that as real interest rates rise households will save more, spend less on imports, thus supply less of their currency, causing it to appreciate on foreign exchange markets. This question may have stumped some kids. I typically teach that higher real interest rates will increase demand for a country’s currency, as foreigners direct their financial capital into the country’s financial markets in pursuit of higher real returns on their investments.

Finally, part (e) is simple enough, asking the impact of the now appreciated currency on net exports. As the country’s goods become more expensive to foreigners, net exports will decline, possibly offsetting the initial increase in government spending.

Overall I’d say that FRQ number 1 was FAR easier than last year’s FRQ on which students had to illustrate the impact of rising exports from New Zealand on the country’s money market and its real interest rates, also involving an explanation of how Australia’s economy might recover from a recession without any government action, requiring an understanding of the neo-classical theory of flexible wages, vertical aggregate supply, and self-correction… overall a MUCH tougher question than this year’s!

Stay tuned for my impression of numbers 2 and 3 of the 2008 form B FRQs!

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May 18 2008

Adam Smith on the China earthquake

Tim Schilling over at MV=PQ blog quotes Adam Smith, the father of economics, who over 200 years ago hypothesized about how the typical Westerner would respond to a catastrophic earth quake in China.

Smith’s observations of man’s moral sentiments form a sharp critique of our so-called humanity. Smith asks whether a man would willingly accept the deaths of millions in a far off land in order to prevent the slightest injury upon himself. If so, then what is it that motivates man to strive to relieve the suffering of the victims of disasters in far off places such as Sichuan Province in China and the Irrawaddy Delta in Mayanmar.

“Let us suppose that the great empire of China, with all its myriads of inhabitants, was suddenly swallowed up by an earthquake, and let us consider how a man of humanity in Europe, who had no sort of connection with that part of the world, would be affected upon receiving intelligence of this dreadful calamity.

He would, I imagine, first of all, express very strongly his sorrow for the misfortune of that unhappy people, he would make many melancholy reflections upon the precariousness of human life, and the vanity of all the labours of man, which could thus be annihilated in a moment. He would too, perhaps, if he was a man of speculation, enter into many reasonings concerning the effects which this disaster might produce upon the commerce of Europe, and the trade and business of the world in general. And when all this fine philosophy was over, when all these humane sentiments had been once fairly expressed, he would pursue his business or his pleasure, take his repose or his diversion, with the same ease and tranquility, as if no such accident had happened.

The most frivolous disaster which could befall him would occasion a more real disturbance. If he was to lose his little finger to-morrow, he would not sleep to-night; but, provided he never saw them, he will snore with the most profound security over the ruin of a hundred millions of his brethren, and the destruction of that immense multitude seems plainly an object less interesting to him, than this paltry misfortune of his own.

To prevent, therefore, this paltry misfortune to himself, would a man of humanity be willing to sacrifice the lives of a hundred millions of his brethren, provided he had never seen them? Human nature startles with horror at the thought, and the world, in its greatest depravity and corruption, never produced such a villain as could be capable of entertaining it. But what makes this difference? When our passive feelings are almost always so sordid and so selfish, how comes it that our active principles should often be so generous and so noble? When we are always so much more deeply affected by whatever concerns ourselves, than by whatever concerns other men; what is it which prompts the generous, upon all occasions, and the mean upon many, to sacrifice their own interests to the greater interests of others?

It is not the soft power of humanity; it is not that feeble spark of benevolence which Nature has lighted up in the human heart that is thus capable of counteracting the strongest impulses of self-love. It is a stronger power, a more forcible motive, which exerts itself upon such occasions. It is reason, principle, conscience, the inhabitant of the breast, the man within, the great judge and arbiter of our conduct. It is he who, whenever we are about to act so as to affect the happiness of others, calls to us, with a voice capable of astonishing the most presumptuous of our passions, that we are but one of the multitude, in no respect better than any other in it; and that when we prefer ourselves so shamefully and so blindly to others, we become the proper objects of resentment, abhorrence, and execration.

It is from him only that we learn the real littleness of ourselves, and of whatever relates to ourselves, and the natural misrepresentations of self-love can be corrected only by the eye of this impartial spectator. It is he who shows us the propriety of generosity and the deformity of injustice; the propriety of resigning the greatest interests of our own, for the yet greater interests of others, and the deformity of doing the smallest injury to another, in order to obtain the greatest benefit to ourselves.

It is not the love of our neighbour; it is not the love of mankind, which upon many occasions prompts us to the practice of those divine virtues. It is a stronger love, a more powerful affection, which generally takes place upon such occasions; the love of what is honourable and noble, of the grandeur, and dignity, and superiority of our own
characters.”

Any thoughts?

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May 17 2008

Down is Often Up & Black is Often White (Why I Love Economics!)

One of the many reasons that I find the study of economics so fascinating is that what so often appears to be a negative situation to the average citizen is actually a positive one. In other words: “down is often up” and “black is often white”. One of my favorite examples of this “180 degree moment”, and why I love to teach AP Macroeconomics, relates to the study of unemployment.

Candidates running for President in the United States often campaign to potential voters that “the United States has 7.5 million Americans out of work”, which is very true. But I say, “Wow, where does the U.S. pick up its’ first-place trophy for being so excellent at employment.” To me, having only 7.5 million out of work is like getting a 5 on yesterday’s AP Macro test! Of course, 7.5 million unemployed in the United States is only 5.0% of our 150 million labor force, and the unemployed workers consist almost entirely of “frictionally” and “structurally” unemployed workers. Frictionally unemployed workers are those workers who are transitioning between jobs or entering the job market. This transitional unemployment is a normal and desirable occurrence in any market-based economy as it evidences free choice. Structurally unemployed workers are also a by-product of a successful, market-based economy as workers are only temporarily unemployed, for the long-run benefit of the economy, as new automated technologies are replacing manual labor, and/or trade agreements are implemented allowing a country’s citizens to purchase less expensive, but still high-quality imported products. Let me be sarcastic for a moment: maybe we can get the U.S. Government to pass two new laws to lower their unemployment rate; one law to outlaw new technology so they can reduce their structural unemployment, and a second law to prevent their citizens from quitting their current jobs so the country can reduce the frictional portion of the unemployment rate as well. Maybe after that (I’m still being sarcastic if you hadn’t noticed!) the U.S. Government will then establish a new goal of 0% unemployment, which is what I hear the unemployment rate is in the US prison work camps!

Another specific example of this “180 degree moment” relating to unemployment is that manufacturing in the U.S. is somehow declining. This misperception has been created primarily on the large loss in U.S. manufacturing jobs and the declining share of manufacturing jobs as a percentage of total U.S. jobs over the last 20 years. It is widely believed that the U.S. global share of manufactured products has decreased which is an incorrect belief. Basically, the misperception has been created because: 1) employment in manufacturing is at an all time low, and 2) the U.S. has increased their share of imports from countries like Japan and China.

The reality, however, is that U.S. Manufactured real product has more than doubled over the last 20 years and they have accomplished this feat with an amazing increase in worker productivity via technology. U.S. manufacturing output per employee has increased markedly due to technology and the effective use of capital.

Yes, I believe “down often really is up”, and “black often really is white”!

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May 16 2008

Welker’s daily links 05/16/2008

Published by under Daily Links

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May 15 2008

Images of destruction and despair – the Sichuan earthquake, May 12, 2008

Published by under China

2008 Sichuan Earthquake – Wikipedia

The following slideshow was sent to my colleague Brian Compton (who forwarded it to me) from his contact at Habitat for Humanity, China. The pictures were all taken in the last 72 hours since the magnitude 7.9 earthquake struck China’s Sichuan province on Monday afternoon this week.

This collection of images tells the story of suffering and despair experienced by the victims of this natural disaster.

SlideShare | View | Upload your own

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May 14 2008

China’s economy shaky after earthquake

FT.com / Asia-Pacific / China – Economy escapes lasting damage from quake

While hundreds of thousands of Sichuan residents in China’s west await the arrival of relief and death tolls approach 15,000 following Monday’s 7.9 earthquake, analysts have begun to assess the quake’s potential economic impact here in China:

The biggest potential economic risk from the earthquake will be on inflation – 8.5 per cent in April – which has emerged in the past year as the principal threat to the economy. Sichuan is China’s largest pig producer – rising pork prices were the initial reason for the jump in inflation last year – and a big rice producer.

“We expect the earthquake to further fuel inflationary expectations in some parts of China due to possible supply shortages as a result of disruption in transportation,” said Ting Lu, an economist at Merrill Lynch.

However, although the earthquake would probably have a short-term impact on prices in the immediate region, economists said it would do little to disrupt agricultural production in the province.

Moreover, national food prices would be affected only if there was sustained disruption to the transport links between agricultural areas of Sichuan and the rest of the country, which appeared unlikely.

Shanghai’s stock market fell 1.8 per cent on Tuesday, and market regulators suspended trading in 66 companies that have significant operations in the region.

Companies that could be hurt by the earthquake include toll road operator Sichuan Expressway, China Telecom, which has a large fixed-line operation in the region, and those in the insurance sector.

Theory suggests that in times when inflation is already high, as currently in China, then a supply shock of even the slightest severity could trigger the expectation of future rice and pork price increases. This expectation may spurn a speculative bout of of food purchases just as supplies are tightened because of the earthquake. The simultaneous speculative increase in demand and quake-triggered contraction in supply may bring about just the price increases that analysis predict.

I won’t be surprised if inflation numbers for May reveal something greater than the 8.5% (22% rise in food prices) experienced in April. Despite economists’ optimism that the quake will have little effect in the long-run, I would predict that in (In macroeconomics): The period of time over which wages and prices are relatively inflexible. A fall in aggregate demand will lead to unemployment and recession in the short-run. Due to the inability of the nation's producers to reduce wages paid to worker, they must lay workers off to reduce costs as demand falls.');" onmouseout="tooltip.hide();">short-run China’s already unstable price levels will see even sharper rises. Might inflation reach double digits in May?

On a personal note, we here at SAS are praying for the victims of the Sichuan quake. Last October my wife and I led 24 tenth graders on a five day cycling trip through the heart of the region where the quake struck. We started at the panda reserve in Chengdu (where thankfully all pandas survived) and rode 100 km northwest to Dujiangyan, the ancient city in the footills of the Himalayas where, sadly, 900 schoolchildren perished when their building collapsed.

Reports indicate that this beautiful city in the hills, home to the world’s oldest (2300 years!) irrigation project running through the heart of the city has been left in ruins. Below is a picture of me, my wife, and the lucky SAS students who cycled through this beautiful region of Sichuan Province last October. The bridge behind us was in the heart of ancient Dujiangyan, only miles from the earthquake’s epicenter. We hope that the suffering in Sichuan is quickly alleviated and that the victims find shelter and solace in the coming days and weeks.

Dujiangyan, Sichuan Province, China. October 2007. SAS China Alive

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May 14 2008

Welker’s daily links 05/14/2008

Published by under Daily Links

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May 13 2008

Welker’s daily links 05/13/2008

Published by under Daily Links

  • IDE Myanmar has operations in practically all of the cyclone-affected areas in the Irrawaddy Delta, and is hence positioned well to provide aid where it is most needed. Here’s what we are doing:

    IDE has targeted 20 township areas that are affected, containing an estimated 8,000 -9,000 villages. About 125 staff have been mobilized to work in these areas – approximately six per township. The initial focus will be on providing immediate relief but rebuilding the agricultural and food security systems will receive equal priority and attention.

    tags: disaster relief, economics, Myanmar, SAS

  • The Shanghai American School service clubs held a joint meeting today to brainstorm how to help victims of the Burma Cyclone. We set up this website on justgiving.com to begin collecting donations to help the victims in Burma. Follow the link to show your support!

    tags: disaster releif, economics, poverty, SAS

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May 12 2008

Welker’s daily links 05/12/2008

Published by under Daily Links

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May 12 2008

And Americans think they have it bad…

Published by under China,Inflation

China’s inflation climbs to 8.5% – Times Online

Imagine how it feels here in China! Food prices are the main driver of overall inflation here. There appear to be both supply and demand factors at play. While the ever-growing middle class consumes more and more resource intensive meat, input costs are forcing producers to restrict their output and pass higher costs onto consumers:

Overall food prices increased by 22.1 per cent in April from a year earlier, while the price of pork, the most popular meat for most Chinese, was up 68.3 per cent over the same period.

Wen Jiabao, the Chinese Premier, said in March that the government wanted to keep inflation at 4.8 per cent this year.

The bureau said in a statement today: “Growth in consumer prices remains high. At the moment, we must pay close attention to future price trends and prioritise the control of price increases and inflation even higher.”

“It is linked to the fact that the international prices of primary products, and especially grain prices, continue to rise, impacting domestic food prices,” it said.

So rising global commodity prices increase costs to food producers here in China, who pass these higher costs onto consumers. But at the same time, the demand-side has seen ever increasing consumption of pork, beef and chicken, which historically were delicacies enjoyed only by China’s elite. With a middle class of around 300 million, today these meats are staples of the masses, come to be considered a normal part of the urban Chinese diet.

To compound inflationary pressures in China, net exports are expected to remain strong or even grow as China’s trading partners face inflationary problems of their own. Rising prices in the US and Europe make still relatively cheap Chinese imports more attractive to these foreign consumers, putting even more upward pressure on China’s price level as demand for its output remains strong abroad.

Premier Wen Jiabao says the government’s target inflation rate is a moderate 4.8%, but with three consecutive months of greater than 8% inflation, this now seems like an unlikely goal for China. The biggest threat inflation poses to the Chinese Communist Party is the undermining of the gains enjoyed by the average Chinese consumer from the 10% average nominal GDP growth the country has enjoyed for most of the last 30 years.

With inflation approaching double digits, much of the nominal income gains resulting from rapid GDP growth are eroded and the real effect of inflation may feel more like economic stagnation to the average Chinese worker. With its legitimacy hinging on continued improvements in economic well-being, the CCP has much to worry about with 8.4% inflation. Contractionary measures are needed to stabilize prices, perhaps even at the expense of continued growth.

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