Economic Analysis of the Demand for a Product/Service in Healthcare Sector

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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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