1. ECON 100 Lecture 20
Monday, April 22

2. Production and Growth

3. Questions
What are the facts about living standards and growth rates around the world?
What is productivity and why does productivity matter for living standards?
What determines productivity and its growth rate?
What can governments do? How can public policy affect growth and living standards?

4. Imagine a country where
Life expectancy at birth < 50 years.
More than 95 percent of all births takes place at home.
About 1 in 10 children die before their first birthday.
Smallpox (çiçek hastalığı), cholera etc. affect the health of citizens.
The top three leading causes of death are
Pneumonia and influenza,
Tuberculosis,
Diarrhea.
Only six percent of all citizens graduate from high school.
Only 3% of the homes have electricity.
Only 15% of homes have indoor flush toilets. …
Which country is this? 4

5. This country is
USA
in 1900 5

6. This immense improvement in the living standards and welfare is the result of sustained long term economic growth. 6

7. US; per capita GDP, 1900 to 2006

8. GDP per capita TURKEY in constant 1948 prices Computed from the TUIK publication “İSTATİSTİK GÖSTERGELER” – Statistical Indicators, , TUIK publication number 3890, available on the internet
In 1923 GDP per capita was 233TL,
In 2011 GDP per capita was 1824TL
This is almost an 8 fold increase in 90 years.
This is equivalent to a 2,5% constant growth rate per year.

9. If instead the Turkish economy grew at a slightly higher rate of 3% every year, the GDP in 2011 would be 3150TL. (This is almost the double of the actual 2011 GDP per capita.)

10. Impact of higher GDP per capita on people’s lives

11. Life expectancy at birth
Hacettepe Universitesi Nufus Etutleri Enstitusu Türkiye’nin Demografik Dönüşümü: Doğurganlık, Aile Planlaması, Anne‐Çocuk Sağlığı ve Beş Yaş Altı Ölümlerdeki Değişimler: 1968‐2008

12. Literacy (age 6+)

13. Maternal mortality per 100,000 birth

15. Income differences around the world

16. What a typical family eats
Hungry Planet: What the World Eats
Peter Menzel shows us the big differences in the standard-of-living around the globe by photographing what a typical family eats over the course of a week.

17. Chad: 2008 GDP per capita = $1,600.

18. Mexico: 2008 GDP per capita = $14,200

19. United States: 2008 GDP per capita = $47,000

20. Mellanders, a German family of five who enjoy cinnamon rolls, chocolate croissants, and beef roulades, and whose weekly food expenses amount to $500. On the other hand, the Natomos of Mali, a family of one husband, his two wives, and their nine children, whose corn and millet-based diet costs $26.39 weekly.

21. Material World: A Global Family Portrait by Peter Menzel
Material World: A Global Family Portrait by Peter Menzel. The differences in economic growth around the world in photographs: the material possessions of a typical family in various countries.

23. Mali: The Natomo Family
It is not unusual in this West African country for men to have two wives, as 39-year-old Soumana Natomo does. More wives mean more children—and a greater chance you will be supported in old age. Soumana now has eight children, and his wives, Pama Kondo (28) and Fatouma Niangani Toure (26), will likely have more. How many of these children will survive, though, is uncertain: Mali's infant mortality rate ranks among the ten highest in the world. Some of the family's possessions are not included in this photo—another mortar and pestle for pounding grain, two wooden mattress platforms, 30 mango trees, and old radio batteries that the children use as toys. (Note: The Natomos appear on the adobe roof of their house in Kouakourou. An infant son is nestled in his mother's arms. One daughter is absent.) Population: 12 million Total fertility rate: 7.0 children per woman Population doubling time: 23 years Percentage urban/rural: 26% urban, 64% rural Per capita energy use: 22 kg. oil equivalent Infant mortality: deaths per 1,000 births Life expectancy: 48 (male), 49 (female) Adult illiteracy: 64% (male), 84% (female) Internet users: 30,000

25. India: The Yadev Family
At age 25, Mashre Yadev is already mother to four children, the oldest of whom was born when she was 17. Each morning at their home in rural Uttar Pradesh, she draws water from a well so that her older children can wash before school. She cooks over a wood fire in a windowless, six-by-nine-foot kitchen, and such labor-intensive domestic work keeps her busy from dawn to dusk. Her husband Bachau, 32, works roughly 56 hours a week, when he can find work. In rough times, family members have gone more than two weeks with little food. Everything they own—including two beds, three bags of rice, a broken bicycle, and their most cherished belonging, a print of Hindu gods—appears in this photograph. Population: 1.0 billion Population density: 318 people per sq. km. Total fertility rate: 3.0 children per woman Population doubling time: 36 years Percentage urban/rural: 28% urban, 72% rural Per capita energy use: 494 kg. oil equivalent Infant mortality: 66 deaths per 1,000 births Life expectancy: 62 (male), 64 (female) Adult illiteracy: 32% (male), 55% (female) Internet users: 7 million

26. United States: The Skeen Family

27. Rick and Pattie Skeen's 1,600-square-foot house lies on a cul-de-sac in Pearland, Texas, a suburb of Houston. The fire hydrant in this photo is real, but not working—a souvenir from Rick's days as a firefighter. Rick, 36, now splices cables for a phone company. Pattie, 34, teaches school at a Christian academy. To get the picture, photographers hoisted the family up in a cherry picker. Yet the image still leaves out a refrigerator-freezer, camcorder, woodworking tools, computer, glass butterfly collection, trampoline, fishing equipment, and the rifles Rick uses for deer hunting, among other things. Though rich with possessions, nothing is as important to the Skeens as their Bible. For this devoutly Baptist family, like many families around the world, it is a spiritual—rather than material—life that matters most. Population: 292 million Population density: 29 people per sq. km. Total fertility rate: 2.0 children per woman Population doubling time: 116 years Percentage urban/rural: 78% urban, 22% rural Per capita energy use: 8,148 kg. oil equivalent Infant mortality: 6.7 deaths per 1,000 births Life expectancy: 74 (male), 80 (female) Adult illiteracy: 3% (male), 3% (female) Internet users: 165 million

29. China: The Wu Family
The nine members of this extended family—father Wu Ba Jiu (59), mother Guo Yu Xian (57), their sons, daughters-in-law, and three grandchildren—live in a three-bedroom, 600-square-foot dwelling in rural Yunnan Province. While they have no telephone, they get news and images of a wider world through two radios and the family's most prized possession, a television. In the future, they hope to get one with a 30-inch screen as well as a VCR, a refrigerator, and drugs to combat diseases in the carp they raise in their ponds. Not included in the photo are their 100 mandarin trees, vegetable patch, and three pigs. Population: 1.3 billion Population density: 627 people per sq. km. Total fertility rate: 1.7 children per woman Population doubling time: 67 years Percentage urban/rural: 37% urban, 63% rural Per capita energy use: 905 kg. oil equivalent Infant mortality: 32 deaths per 1,000 births Life expectancy: 69 (male), 73 (female) Adult illiteracy: 7.9% (male), 22.1% (female) Internet users: 46 million

31. Japan: The Ukita Family
Like many Japanese women, 43-year-old Sayo Ukita had children relatively late in life. Her youngest daughter is now in kindergarten, not yet burdened by the pressures of exams and Saturday "cram school" that face her nine-year-old sister. Sayo is supremely well-organized, which helps her manage the busy schedules of her children and maintain order in their 1,421-square-foot Tokyo home stuffed with clothes, appliances, and an abundance of toys for both her daughters and dog. She and her husband Kazuo, 45, have all the electronic and gas-powered conveniences of modern life, but their most cherished possessions are a ring and heirloom pottery. The family's wish for the future: a larger house with more storage space. Population: 128 million Population density: 336 people per sq. km. Total fertility rate: 1.3 children per woman Population doubling time: 289 years Percentage urban/rural: 79% urban, 21% rural Per capita energy use: 4,316 kg. oil equivalent Infant mortality: 3 deaths per 1,000 births Life expectancy: 78 (male), 85 (female) Adult illiteracy: 1% (male), 1% (female) Internet users: 56 million

32. GDP, The big ten

33. GDP, The second big ten

34. So then…
Economic prosperity, as measured by GDP per person, varies substantially around the world.
The average income in the world’s richest countries is more than ten times that in the world’s poorest countries.
Because growth rates of real GDP also vary substantially, the relative positions of countries can change dramatically over time.

35. Incomes and Growth Around the World
GDP per capita, 2009
Growth rate, 1970–2009
China
$6,828
7.4%
Singapore
$50,633
4.7%
India
$3,296
3.3%
Japan
$32,418
2.2%
Spain
$32,150
2.1%
Israel
$27,656
Colombia
$8,959
1.9%
United States
$45,989
1.8%
Canada
$37,808
1.7%
Philippines
$3,542
1.3%
Rwanda
$1,136
1.1%
New Zealand
$28,993
Argentina
$14,538
1.0%
Saudi Arabia
$23,480
0.6%
Chad
$1,300
0.4%
FACT 1:
There are big differences in living standards around the world. 35

36. Incomes and Growth Around the World
GDP per capita, 2009
Growth rate, 1970–2009
China
$6,828
7.4%
Singapore
$50,633
4.7%
India
$3,296
3.3%
Japan
$32,418
2.2%
Spain
$32,150
2.1%
Israel
$27,656
Colombia
$8,959
1.9%
United States
$45,989
1.8%
Canada
$37,808
1.7%
Philippines
$3,542
1.3%
Rwanda
$1,136
1.1%
New Zealand
$28,993
Argentina
$14,538
1.0%
Saudi Arabia
$23,480
0.6%
Chad
$1,300
0.4%
FACT 2:
There is great variation in growth rates across countries. 36

37. First question!
Roughly speaking, the ratio of incomes per capita for the richest and poorest countries on the preceding slide was
Fifty to one
Twenty to one
Ten to one
Five to one

38. Second question!!
Roughly speaking, the range of annual growth rates in income per capita for the countries on the preceding slide was from
3 to 6 percent
0 to 7 percent
2 to 5 percent
0 to 2 percent

39. Economic growth: the last 2000 years

40. Until 1500, there had been almost zero growth of output per worker.
After 1800, we see large sustained increases in worldwide standards of living.
population growth accelerated
output per capita grew

41. LONG TERM Economic Growth

42. World GDP selected years

44. Angus Maddison ( ) was a British economist and a world scholar on quantitative macroeconomic history, including the measurement and analysis of economic growth and development for different regions, time periods and subtopics.

45. Growth Rates and the Rule of 70
Growth rate from one year to the next
If we assume that the growth rate is constant, then

46. Growth Rates and the Rule of 70
If per capita GDP grows at 7%, then it doubles every 10 years.
If per capita GDP grows at 2%, then it doubles every 35 years.
If real GDP per capita doubles every 10 years, most people in the country see significant increases in their living standards over the course of their lives.
If real GDP per capita doubles only every 100 years, then the increase in living standard is much lower.

47. What determines a country’s standard of living?
Productivity

48. Productivity
A country’s standard of living depend on its ability to produce goods and services. This ability depends on productivity, the average quantity of goods and services produced per unit of labor input. Y = real GDP = quantity of output produced L = quantity of labor So productivity = Y/L (output per worker)

49. Why Productivity Is So Important
When a nation’s workers are very productive, real GDP is large and incomes are high.
When productivity grows rapidly, so do living standards.
What, then, determines productivity and its growth rate? 49

50. But before that…

51. The Universal Replicator
The Universal Replicator is a machine that can replicate any physical good. If a car is put into the Universal Replicator, the machine will create an exact working duplicate at the touch of a button. It will work on any non-living object. Assume this technology becomes widely used in the country by all producers.
1. What impact will the Universal Replicator have on the economy?
2. What jobs will not be needed?
3. What will happen to the price of goods?
4. What kinds of problems do you expect?
5. What benefits do you see?
6. What kinds of jobs will still be necessary?

52. Now back to
What determines productivity and its growth rate? 52

53. Physical Capital Per Worker
The stock of equipment and structures used to produce goods service is called [physical] capital, denoted K.
K/L = capital per worker.
Productivity is higher when the average worker has more capital (machines, equipment, etc.).
i.e., an increase in K/L causes an increase in Y/L. 53

54. Human Capital Per Worker
Human capital (H): the knowledge and skills workers get through education, training, and experience.
H/L = the average worker’s human capital
Productivity is higher when the average worker has more human capital (education, skills, training, etc.).
i.e., an increase in H/L causes an increase in Y/L. 54

55. Natural Resources Per Worker
Natural resources (N): the inputs into production that nature provides, e.g., land, mineral deposits
Some countries are rich because they have abundant natural resources (e.g., Saudi Arabia has lots of oil).
But countries need not have much N to be rich (e.g., Japan imports the N it needs). 55

56. Technological Knowledge
Technological knowledge: society’s understanding of the best ways to produce goods and services.
Technological progress does not only mean a faster computer, a higher-definition TV, or a smaller cell phone.
It means any advance in knowledge that increases productivity (allows society to get more output from its resources).
e.g., Henry Ford and the assembly line. 56

57. Tech. Knowledge vs. Human Capital
Technological knowledge refers to society’s understanding of how to produce goods and services.
Human capital results from the effort people expend to acquire this knowledge.
Both are important for productivity. 57

58. Economic Growth and Public Policy
Governments can do many things to raise productivity and living standards.

59. Government Policies That Raise Productivity and Living Standards
Encourage saving and investment.
Encourage education and training.
Establish secure property rights and maintain political stability.

60. Government Policies That Raise Productivity and Living Standards
Promote free trade.
Control population growth.
Promote research and development.

61. End of the lecture remark

62. Are You Richer than the Richest Person in the World?
According to the magazine American Heritage, the richest American of all time is John B. Rockefeller, whose wealth in today’s prices would be $200 billion.
Rockefeller lived from 1839 to 1937.
He did not enjoy many of the nice things we take for granted today such as television and air conditioning.
Because of technological advances, the average person in the developed world today may enjoy a “richer” life than the richest American who lived a century ago.

63. End of the lecture