MicroeconNotes
Mini-lectures and tidbits of info for the beginning economics student
written by Daurie Augostine
-- written by Daurie Augostine
Wednesday, August 15, 2018
Tuesday, September 3, 2013
Videos for the Micro class .....
For more information on the following economic concepts, click on the links below.
Scarcity, Choice, Rational Self-Interest, etc.
Macroeconomics vs. Microeconomics
Positive vs. Normative Economics
Graphs
Individual PPC
Opportunity Cost
Just a short note about the definition of "full cost" shown in the Opportunity Cost video. It should read:
Opportunity Cost = Direct (or Explicit) Cost + Indirect (or Implicit) Cost
Law of Demand
Demand vs. Quantity Demanded
Law of Supply
Market Equilibrium
Price Floors & Price Ceilings
Price Elasticity of Demand
Characteristics that Determine Elasticity
Diminishing Marginal Utility
Indifference Curve Analysis
Producer Theory
Short Run vs. Long Run
Accounting Cost vs. Economic Cost
Fixed and Variable Costs
Cost Curves
Do we really need all those diagrams?
Scarcity, Choice, Rational Self-Interest, etc.
Macroeconomics vs. Microeconomics
Positive vs. Normative Economics
Graphs
Individual PPC
Opportunity Cost
Just a short note about the definition of "full cost" shown in the Opportunity Cost video. It should read:
Opportunity Cost = Direct (or Explicit) Cost + Indirect (or Implicit) Cost
Law of Demand
Demand vs. Quantity Demanded
Law of Supply
Market Equilibrium
Price Floors & Price Ceilings
Price Elasticity of Demand
Characteristics that Determine Elasticity
Diminishing Marginal Utility
Indifference Curve Analysis
Producer Theory
Short Run vs. Long Run
Accounting Cost vs. Economic Cost
Fixed and Variable Costs
Cost Curves
Do we really need all those diagrams?
Tuesday, September 20, 2011
To my current econ students .....
Remember to bring your answer to the problem I gave in class on Thursday ---
Update the CPI values (all three years) if the base year was 2011 instead of 2010. Use the market basket totals ($7.50, $5.25, $3.75) and the CPI formulas. Be sure to multiply by 100.
Monday, September 5, 2011
Coming Soon ...
... more mini-lectures on Microeconomics! Check back for updates and more info and hopefully, the semester is going well so far.
Monday, January 3, 2011
Economies of Scale
Suppose L = 1 and K = 2 and the prices of each input are $10 so that TC = $30. The Q produced is equal to 5 so that AC = TC/Q = $6. If both inputs double (i.e., L = 2 and K = 4) and Q triples so that Q = 15, will AC rise, fall, or stay the same? Is this an example of increasing, decreasing, or constant returns to scale? Is this an example of a short run or long run concept, and why?
Thursday, June 10, 2010
Marketing #5
Economic Rent
Economic rent is the difference in the amount of money that an individual would be willing to work for, and the amount that they are actually paid. Consider a rock star, or a sports figure who earns, say, a million dollars each year, but would actually be willing to work for $100,000/year. Economic rent, then, equals $900,000 which is a payment provided to the individual (or any type of input) due to their "uniqueness". Another way of thinking about this concept is that an increase in wages will not increase the quantity of labor supplied because the equilibrium wage (which ultimately determines economic rent) is primarily a function of DEMAND for an individual input since supply is relatively fixed.
Economic rent is the difference in the amount of money that an individual would be willing to work for, and the amount that they are actually paid. Consider a rock star, or a sports figure who earns, say, a million dollars each year, but would actually be willing to work for $100,000/year. Economic rent, then, equals $900,000 which is a payment provided to the individual (or any type of input) due to their "uniqueness". Another way of thinking about this concept is that an increase in wages will not increase the quantity of labor supplied because the equilibrium wage (which ultimately determines economic rent) is primarily a function of DEMAND for an individual input since supply is relatively fixed.
Sunday, June 6, 2010
Marketing #4
Backward-bending Labor Supply
An individual's labor supply curve will have an upward-sloping range and then eventually will start to bend backward.
Consider this question: When you get a pay raise, does the raise cause you to work more hours, or less hours? (With respect to this question, assume that you have the ability to choose how many hours you'd like to work.)
[Note: Refer to the graph below.]
The labor supply curve begins at point A with what's referred to as a "reservation wage" (i.e., the lowest wage you would be willing to give up your leisure time for). In the upward-sloping range, as the wage increases, the quantity of labor hours supplied also increases. (Digression: W and L are positively related here because the substitution effect between labor and leisure exceeds the income effect of the wage increase.)
However, at a particular wage (and this wage is different for different individuals), the income effect will dominate the substitution effect, and as the wage increases, the quantity of labor supplied will start to decrease. W and L are inversely related in this region because when the wage rises, the individual feels "richer", and chooses to work less, not more.
An individual's labor supply curve will have an upward-sloping range and then eventually will start to bend backward.
Consider this question: When you get a pay raise, does the raise cause you to work more hours, or less hours? (With respect to this question, assume that you have the ability to choose how many hours you'd like to work.)
[Note: Refer to the graph below.]
The labor supply curve begins at point A with what's referred to as a "reservation wage" (i.e., the lowest wage you would be willing to give up your leisure time for). In the upward-sloping range, as the wage increases, the quantity of labor hours supplied also increases. (Digression: W and L are positively related here because the substitution effect between labor and leisure exceeds the income effect of the wage increase.)
However, at a particular wage (and this wage is different for different individuals), the income effect will dominate the substitution effect, and as the wage increases, the quantity of labor supplied will start to decrease. W and L are inversely related in this region because when the wage rises, the individual feels "richer", and chooses to work less, not more.
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