Economic Analysis of the Demand for a Product/Service in Healthcare Sector
UMUC HMGT 435
Week 4: The Supply Side: Importance of Costs
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Understand difference between accounting vs. economic costs
Understand characteristics of cost in short-run vs. long-run and impact on:
Average vs. marginal
Input specialization
Diminishing returns
Understand what costs matter for a firm’s pricing decision
Breakeven vs. shut-down prices
Understand what factors constitute a “perfectly competitive” market
Key Learning Objectives Week 4
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Economic costs include the “opportunity” cost of inputs used in the production process
Economic Cost = Explicit cost + Implicit Cost
Accounting Cost = Explicit cost
Explicit cost : actual monetary payments for inputs
Implicit cost: opportunity cost of inputs that do not require a monetary payment
Applies to Profit Equation as Well
Economic Profit = Total Revenue minus Costs (Explicit + Implicit)
Accounting Profit = TR minus C (Explicit only)
Accounting vs. Economic Costs and Profits
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From Week 1 introduced the concept of factors of production also called input into the production process
Labor- Doctors, nurses, administrative staff, etc.
Physical capital – Hospitals, doctor’s offices, medical technology, etc.
Natural Resources and Raw Materials – land for the capital to be built, energy sources (oil and gas), raw materials for pharmaceuticals
Entrepreneurship – scientists who develop cures for cancer, drug companies who develop new drugs.
Production Function: Relationship between Inputs (e.g. labor, capital) to and Outputs (e.g. patient care) from the production process
Factors of Production in Healthcare
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Production Function and Time
Short-run: period of time in which firms are able to vary one of the inputs to production
Long-run: period of time in which firms can vary all inputs to production
All inputs are variable in long-run, you can hire and fire labor, you can build more physicians offices and hospitals
Thus, the production function is largely a short-run decision
Within the Short-Run timeframe, firms do face different stages of production based on how much output (and marginal product) they can get from a given input (e.g. labor).
The Production Function and Time
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Increasing returns (Marginal Product (MP) > Average Product (AP)
Each additional worker contributes more to their output.
Example: New physician office with a number of exam rooms and one physician and one admin staff. Adding another physician and admin staff can allow the office to see more patients in a day.
Diminishing returns (MP = AP)
As firm increases workers, output increases but at a diminishing rate.
Example: Too many physicians for same amount of office space means that they will start bumping into each other and rate of growth in patient care will decline
Negative (or decreasing) returns (MP < AP)
As firms add workers, output declines
Example: waiting room and exam rooms at full capacity, so cannot see any more partients even if add physicians, only solution is a long-run option to expand office space.
The Stages of Production
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Total Costs = Fixed Costs + Variable Costs
Fixed costs do not vary with quantity produced
Variable costs vary with quantity produced
In the long-run, all costs are variable
Distinguish between Average and Marginal Costs
Average Costs = Total Costs/Quantity
Marginal Costs = Change in Total Costs resulting from a one-unit increase in output
Principle of Diminishing Returns
As more variable inputs are added, in the SR, MC must eventually be increasing
Example: Crowded hospital waiting room
Short-Run Costs
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Characteristics of a perfectly competitive market:
Many sellers (large number of firms) and buyers
Homogeneous product (identical and no branding)
No barriers to entry
Firms in Perfectly Competitive Market must determine:
What price to charge?
How much to produce?
Supply Curve of A Perfectly Competitive Firm
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PC firm is a “price taker” accepts market price (no influence over market price)
P=MR for the firm
Demand curve is horizontal at the market P (perfectly elastic)
A price above market price, demand would drop to zero and everyone would go to competitors
What Price Does Perfectly Competitive (PC) Firm Charge?
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Total Revenue = Price (times) Quantity
Economic Profit = Total Revenue (minus) total economic cost
Marginal revenue:
Increase in revenue from selling one more unit
P = MR in Perf. Comp. market
Using Marginal Principal choose Q where MR = MC
How Much Does a PC Firm Produce?
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Total Cost = FC + VC
A firm must cover it’s variable cost (also thought of as operating cost) to be viable
It still must cover it’s fixed cost.
Shutdown P = AVC = MC
Point where firm indifferent between operating or not
Any point where P > AVC the firm can still operate
A firms would shutdown if P<AVC
Firm’s Shut Down Decision
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Fixed or Sunk Cost
A cost a firm has already committed to and cannot be recovered
If firm produces nothing it will have a loss equal to fixed costs
The decision to operate or not ignores any fixed costs
Only the relationship between revenue and variable costs is important for SR decision to shut-down or not
Fixed Costs and Decision to Shut-down
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Change in Inputs (e.g. labor and capital)
Number of producers/suppliers
Change in Technology (which impacts productivity)
Government Regulation/Taxes/ Subsidies
Future expectations
Factors Leading to A Shift in Supply Curve
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Shifts in Demand or Supply in Perfectly Competitive Market
How does the market react to events that influence the demand for or supply of medical services in perfectly competitive market
Recall that changes in factors other than output price will cause the demand or supply curve to shift
An increase in consumer income will cause the demand curve for physician visits to shift to the right
An increase in the wage of nurses will cause the supply curve for hospital stays to shift to the left
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Effect on Equilibrium
These shifts in the demand or supply curves will lead to a change in equilibrium price and quantity
Predicting such changes is referred to as comparative static analysis
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Comparative Static Analysis
Case Study: In the mid-1980s, the AIDs epidemic led to an increase in the demand for latex gloves among health care workers
The epidemic led to a shift to the right in the demand curve for latex gloves
Excess demand for gloves developed, leading to a temporary shortage of gloves
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Comparative Analysis (Long run)
Market output of latex gloves (Q)
Dollars per pair
S
D0
Q0
P0
D1
E
F
Excess demand
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Comparative Analysis (Long run)
The shortage of gloves led buyers to bid the price of gloves upwards
As the price bid for gloves rose, suppliers increased their quantity supplied of gloves
This process continued until a new short-run equilibrium was reached
From 1986 to 1990, annual sales of latex gloves increased by ~58%
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Comparative Analysis (Long run)
Market output of latex gloves (Q)
Dollars per pair
S
D0
Q0
P0
D1
P1
Q1
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Entry of Firms in Long-Run
Other medical suppliers made plans to build new manufacturing plants to make gloves, in the hopes of making profits
In 1988, 116 permits were pending in Malaysia for building latex glove factories
Entry of the new plants into the market increased the supply of latex gloves in the long run
The supply curve for gloves shifted out
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Comparative Analysis (Long run)
Market output of latex gloves (Q)
Dollars per pair
S0
D0
Q0
P0
D1
P1
Q1
Q2
S1
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Effect on Long-Run Price in Perfectly Competitive Markets
As the supply curve for gloves shifts out, the price of gloves begins to fall
Note that the quantity of gloves sold on the market also increases
As the price of gloves fall, profits also fall
The process continues, until the price of gloves falls back to P0, where profits for all glove makers are again equal to 0
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