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By the end of this section, you will be able to:

  • Identify the role of labor productivity in promoting economic growth
  • Analyze the sources of economic growth using the aggregate production function
  • Measure an economy’s rate of productivity growth
  • Evaluate the power of sustained growth

Sustained long-term economic growth comes from increases in worker productivity, which essentially means how well we do things. In other words, how efficient is your nation with its time and workers? Labor productivity is the value that each employed person creates per unit of his or her input. The easiest way to comprehend labor productivity is to imagine a Canadian worker who can make 10 loaves of bread in an hour versus a U.S. worker who in the same hour can make only two loaves of bread. In this fictional example, the Canadians are more productive. Being more productive essentially means you can do more in the same amount of time. This in turn frees up resources to be used elsewhere.

What determines how productive workers are? The answer is pretty intuitive. The first determinant of labor productivity is human capital. Human capital is the accumulated knowledge (from education and experience), skills, and expertise that the average worker in an economy possesses. Typically the higher the average level of education in an economy, the higher the accumulated human capital and the higher the labor productivity.

The second factor that determines labor productivity is technological change. Technological change is a combination of invention    —advances in knowledge—and innovation    , which is putting that advance to use in a new product or service. For example, the transistor was invented in 1947. It allowed us to miniaturize the footprint of electronic devices and use less power than the tube technology that came before it. Innovations since then have produced smaller and better transistors that that are ubiquitous in products as varied as smart-phones, computers, and escalators. The development of the transistor has allowed workers to be anywhere with smaller devices. These devices can be used to communicate with other workers, measure product quality or do any other task in less time, improving worker productivity.

The third factor that determines labor productivity is economies of scale. Recall that economies of scale are the cost advantages that industries obtain due to size. (Read more about economies of scale in Cost and Industry Structure .) Consider again the case of the fictional Canadian worker who could produce 10 loaves of bread in an hour. If this difference in productivity was due only to economies of scale, it could be that Canadian workers had access to a large industrial-size oven while the U.S. worker was using a standard residential size oven.

Now that we have explored the determinants of worker productivity, let’s turn to how economists measure economic growth and productivity.

Sources of economic growth: the aggregate production function

To analyze the sources of economic growth, it is useful to think about a production function    , which is the process of turning economic inputs like labor, machinery, and raw materials into outputs like goods and services used by consumers. A microeconomic production function describes the inputs and outputs of a firm, or perhaps an industry. In macroeconomics, the connection from inputs to outputs for the entire economy is called an aggregate production function    .

Questions & Answers

what is barter system
twinkel Reply
a system in which goods are exchanged for other goods
Barter system is said to be the process whereby goods are being exchange for goods
a system in which money have not play any role
goods and services are exchanged .. problem is finding equitable or agreeable value for the exchange of the goods or services.. I teach maths privately and love home made cake, I decided 4 home made cakes was worth an hour of private maths 😁
accounts in balance of trade
Kamuyu Reply
What is fiscal policy and intrest rates
Attah Reply
income and expenditure
Bittu Reply
Macro economics : it is the study of all aggregate of all economic activities of an economic as whole.
Rajat Reply
what is macro economics
Sarah Reply
it is study of all aggregate of all economic activities of an economic as whole.
Macro economics is the aggregate study of national income, investment, price level, changes in economic activities, GDP and economic inflation.
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what is comparative and superlative advantage? give an example
Xanaan Reply
Methods used to correct trade deficits?
David Reply
what is role capitalism unemployment?
Mafsuud Reply
being unemployment look job but not achieved their being out labor force is person can't work
being unemployment look job but not achieved their being out labor force is person can't work
themes studied in economics include?
Patrick Reply
Financial accounting GDP and GNP
Samson Reply
can u explain
this means that the demand curve have negative relationship with the price ..which means that when high price low demand of the product and vice versa so higher price will shirnk the demand of product
Ahsan Reply
Higher price level ∴Real value of household wealth increase ∴Net export decrease ∴More money needed, interest rate increase, investment decrease
net export decrease
a person has 60birr to buy two commodities,x and y the price of x is four birr unit the price of y is two birr unit his utility functio given by u=xy+2x determine the budget equation
Mohammed Reply
the budget equation will be- 60 birr= 4x+2y
What are the various reasons for the Federal Reserve to increase the fed rates?
What is unemployment
Mijash Reply
Unemployment is a term used to describe people who do not hold a paying job
what are the causes of unemployment
unemployment refer to the situation in which people searching job but they have no. it also refers in which marginal productivity in zero.
Causes of unemployment are: 1: Over Population 2: Break down of the family system 3: Rural/Urban Migration
unemployment simply means, in the situation where by people are looking for a job and their could achieve it.
unemployment is a situation where by one has the ability to work but is not given a job

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Source:  OpenStax, Macroeconomics. OpenStax CNX. Jun 16, 2014 Download for free at http://legacy.cnx.org/content/col11626/1.10
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