Technology, Production, and Costs

Comprehensive practice flashcards covering Chapter 9 (Technology, Production, and Costs), lecture slides, and appendices, detailing production functions, productivity measures, cost curve geometry, corporate income schedules, economies of scale, and input choice optimization.

How is technology defined in economics, and what does it encompass beyond new physical products?

In economics, technology is the process a firm uses to turn inputs (such as workers, machines, and natural resources) into outputs of goods and services. Beyond physical equipment, it includes organizational methods, managerial skills, worker training, and factory layouts.

What constitutes positive technological change, and what is a specific real-world example?

Positive technological change occurs when a firm can produce more output with the same inputs, or the same output with fewer inputs. Examples include EOG using iSteer to recover more oil and gas with identical inputs, or Starbucks installing faster espresso machines and redesigning store layouts.

What is negative technological change, and what conditions can cause it?

Negative technological change occurs when a firm produces less output with a given quantity of inputs. Causes include natural disasters (such as hurricanes) damaging equipment, government pandemic operating restrictions forcing operations below capacity, or hiring less-skilled workers.

Why is an increase in employee salaries not an example of negative technological change?

A salary increase is a change in the price of an input that alters production costs, not a change in technology. It does not reduce the firm's physical ability to produce a given quantity of output from a given quantity of inputs.

What two factors drove the decline in oil field employment after 2016 despite rising labor productivity?

A sharp drop in oil prices from $\$98$ per barrel in 2013 to $\$43$ in 2016 reduced production, alongside the rapid adoption of labor-saving technologies (sensors, computers, robotics, and drones). This nearly doubled monthly labor productivity from $2{,}700$ to $5{,}200$ barrels per worker between 2016 and 2023 while overall employment dropped by about $35\%$ from its peak.

What defines the economic short run versus the economic long run?

The short run is a period during which at least one input (such as physical plant or capital equipment) is fixed. In the long run, all inputs are variable, allowing the firm to alter plant size, adopt new technology, and adjust all resources.

How does the time required to transition from the short run to the long run vary across different firms?

The transition duration depends on how quickly a firm can adjust its fixed capital. A small pizza restaurant or coffee shop might reach the long run in a few weeks by adding tables or ovens, whereas an automaker like General Motors or Ford may require a year or more to build or expand an assembly plant.

What is the difference between explicit costs and implicit costs?

Explicit costs involve direct, out-of-pocket cash payments for resources (e.g., wages, rent, and materials). Implicit costs are nonmonetary opportunity costs that do not involve direct cash outlays, such as forgone salary, forgone investment interest, or economic depreciation.

How is economic depreciation defined and categorized?

Economic depreciation is the loss in the market value of physical capital over time, calculated as the difference between the capital's original purchase price and its resale value at the end of the year. It is categorized as an implicit cost.

How does economic profit differ from accounting profit?

Accounting profit subtracts only explicit costs from total revenue. Economic profit subtracts total economic costs—both explicit costs and implicit costs (such as the opportunity cost of owner capital and expected risk-adjusted return)—from total revenue.

What is the Marginal Product of Labour ($MP_L$) and how is it calculated?

The Marginal Product of Labour is the additional output produced when one more unit of labour is hired. It is calculated as $MP_L = \frac{\Delta q}{\Delta L}$.

What is the Average Product of Labour ($AP_L$) and how is it calculated?

The Average Product of Labour is the total output divided by the total quantity of labour employed. It is calculated as $AP_L = \frac{q}{L}$.

What does the Law of Diminishing Returns state, and why does it not apply in the long run?

It states that adding more of a variable input (such as labour) to a fixed amount of a fixed input (such as capital) will eventually cause the marginal product of the variable input to decline. It does not apply in the long run because all inputs are variable and none are fixed.

What is the mathematical relationship between the Marginal Product of Labour ($MP_L$) and the Average Product of Labour ($AP_L$)?

When $MP_L > AP_L$, $AP_L$ increases; when $MP_L < AP_L$, $AP_L$ decreases; and $MP_L = AP_L$ at the maximum point of the $AP_L$ curve.

In Adam Smith's pin factory example, how did the division of labour impact productivity?

By dividing pin manufacture into 18 distinct specialized tasks, a worker specializing within a team could produce approximately $4{,}800$ pins per day, compared to about $20$ pins per day if an individual worker attempted all operations alone.

How is Marginal Cost ($MC$) related to the Marginal Product of Labour ($MP_L$) when wage ($w$) is constant?

Marginal Cost and $MP_L$ are mirror images: $MC = \frac{w}{MP_L}$. When $MP_L$ increases due to specialization, $MC$ falls; when diminishing returns cause $MP_L$ to decline, $MC$ rises.

Why is the Average Fixed Cost ($AFC$) curve continuously downward sloping?

Because Total Fixed Cost ($FC$) remains constant regardless of output, dividing $FC$ by an increasing quantity of output ($AFC = \frac{FC}{q}$) causes $AFC$ to decline steadily toward zero, a process known as "spreading the overhead."

Why does the vertical gap between the Average Total Cost ($ATC$) and Average Variable Cost ($AVC$) curves narrow as output rises?

Because $ATC = AVC + AFC$, the vertical distance between $ATC$ and $AVC$ equals $AFC$. Since $AFC$ continuously declines toward zero as output increases, the distance between the two curves must shrink.

At what specific points does the Marginal Cost ($MC$) curve intersect the $AVC$ and $ATC$ curves?

The Marginal Cost curve intersects both the Average Variable Cost curve and the Average Total Cost curve exactly at their respective minimum points.

If a firm pays a wage rate of $w = \$750$ and $MP_L = 150$, what is its marginal cost, and what does it become if $MP_L$ increases to $250$?

Initially, $MC = \frac{\$750}{150} = \$5$. When $MP_L$ increases to $250$, marginal cost falls to $MC = \frac{\$750}{250} = \$3$.

In Dr. Colin Mang's Corporate Income schedule, what constitutes Gross Profit and how does it relate to economics?

Gross Profit is calculated as Sales Revenue minus Cost of Goods Sold (Variable Costs). In economic terminology, Gross Profit corresponds directly to Producer Surplus.

Under the corporate income breakdown, which line items are specifically designated as Capital Costs?

Depreciation, Interest payments, and Dividends Paid to Owners are all classified as Capital Costs.

If a tax preparation firm pays a fixed monthly license fee for AI software that allows it to serve clients using fewer workers, how do its short-run cost curves shift?

Because fixed costs increase, the $AFC$ curve shifts up. Because fewer workers are required per tax return, variable and marginal expenses decrease, causing the $AVC$, $MC$, and $ATC$ curves to shift down.

According to this diagram, why did General Motors' average total cost curve shift from $ATC_1$ to $ATC_2$ when production decreased from $Q_1$ to $Q_2$?

Under GM's labor contract, the company had to pay $95\%$ of laid-off workers' salaries, converting those wages into fixed costs. When production fell, this contractual obligation shifted the entire $ATC$ curve upward, landing GM at point C ($AC_3$) instead of point B ($AC_2$).

What are economies of scale, and what four factors generate them?

Economies of scale occur when long-run average total cost decreases as output increases. They are driven by: (1) technology enabling output growth with less-than-proportional input expansion; (2) increased specialization of labor and management; (3) bulk-purchasing discounts from bargaining power; and (4) lower borrowing interest rates.

What is Minimum Efficient Scale (MES)?

Minimum Efficient Scale is the lowest level of output at which all economies of scale are exhausted and long-run average total cost reaches its minimum.

What are diseconomies of scale, and why did Ford experience them at its River Rouge plant?

Diseconomies of scale occur when a firm's long-run average total cost rises as output expands, caused by coordination and managerial inefficiencies. Ford's River Rouge plant became overly complex (93 structures, 93 miles of rail track, 27 miles of conveyors, 75,000 workers), causing management breakdowns and losses on each Model A produced.

In this long-run average cost graph for an investment fund, what economic conditions are represented by curves $SRATC_1$, $SRATC_2$, $SRATC_3$, and the range between $Q_1$ and $Q_2$?

$SRATC_1$ represents a fund operating below minimum efficient scale; $SRATC_2$ reaches minimum efficient scale at output $Q_1$; $SRATC_3$ suffers from diseconomies of scale; and the flat segment between $Q_1$ and $Q_2$ represents constant returns to scale.

What are an isoquant and an isocost line in production analysis?

An isoquant shows all combinations of two inputs (e.g., capital and labour) that produce the same level of output; its slope is the Marginal Rate of Technical Substitution ($MRTS$). An isocost line shows all combinations of inputs that cost the same total amount, with a slope equal to $-w/r$.

What is the cost-minimizing input combination condition for a firm hiring capital ($K$) and labour ($L$)?

Cost minimization occurs where the isoquant is tangent to an isocost line, such that $MRTS = \frac{w}{r}$, or equivalently, $\frac{MP_L}{w} = \frac{MP_K}{r}$.

Based on this isoquant diagram, why do orange-harvesting firms choose combination A in the United States but combination B in Brazil?

In the United States, labour is expensive relative to capital, yielding steep isocost lines and cost minimization at point A (capital-intensive). In Brazil, labour is cheap relative to capital, creating flat isocost lines and cost minimization at point B (labour-intensive).

What operational specifics describe Mesa Air Group according to its company profile?

Headquartered in Phoenix, Arizona, and founded in 1982, Mesa Air Group, Inc. operates as the holding company for Mesa Airlines, Inc. As of September 30, 2022, it operated a fleet of 158 aircraft with approximately 306 daily departures to 107 cities across the United States and Mexico under capacity purchase agreements with American Airlines and United Airlines.