Lecture: Midterm Review & the Growth Question
Lecture script · about 15–20 minutes spoken · Week 8
Opening
Think about the first day at any job you've had. Somebody told you whom to ask when something went wrong. Maybe it was a shift lead at a sandwich shop, or a coordinator at a food bank. That person was your boss, and the line between the two of you was part of a chart, even if nobody ever drew it.
Whether you end up leading a shift in a hospital kitchen, volunteering at a food bank, or growing a coffee cart of your own, two things hold. The tools from the first half of this course still decide whether the business works. And the moment a business grows past one person, you also need to know who reports to whom, and who gets to decide.
Here's where we are. For seven weeks we've followed one illustrative coffee cart. Week 1 gave it a SWOT. Week 2 placed it in a market. Week 3 wrote its plan and its funding plan. Week 4 chose its legal form. Week 5 asked what it owes. Week 6 found its bottleneck. And Week 7 priced its drinks.
In this lecture I'll walk back through those seven weeks, one tool or one distinction each. Then we'll add the one new tool, the organization chart, and use it on the cart at one cart and at two. After this week, Week 9 takes the growing cart to more customers.
1. Inside or outside first
Picture a campus bookstore in the first week of classes. The line runs out the door and the registers never stop. Is it a great week for profit? Not necessarily. A lot of that money goes right back out for books, extra cashiers, and shipping.
That's Week 1's distinction. Revenue is the money that comes in from selling goods or services, before anything is paid out. Profit is what is left when expenses are subtracted from revenue. A busy register shows revenue. It doesn't show profit until the expenses are counted.
Week 1's tool was the SWOT. You sort each entry with two questions. Is it inside the cart or outside it? And does it help or hurt? The cart's strengths are low fixed costs and being able to move to where the customers are. Its weaknesses are one espresso machine and one person at the counter. Its opportunities are an office building opening two blocks away and a weekend farmers' market looking for vendors. Its threats are a chain café opening nearby and rising bean prices. That's 4 entries inside and 4 outside.
The classic slip is filing the office building as a strength because it's good news.
Pause and try this. Is the office building opening two blocks away a strength or an opportunity?
Ask the inside-or-outside question first.
Here's the answer. It's an opportunity, because the cart doesn't own or control the building; it sits outside the cart.
In or out first, good or bad second.
2. Read the match
Now picture a farmers' market at opening time, with strawberry sellers setting their prices. In Week 2 we turned that scene into a schedule, a classroom model of buyers and sellers. Equilibrium is the price at which the amount buyers want to purchase matches the amount sellers want to sell.
On our schedule, that match happens at 5 dollars a pint, where buyers want 400 pints and sellers offer 400 pints. At 4 dollars, buyers want 500 pints but sellers offer only 300, so there's a shortage of 200 pints, and the price tends to rise. Then a summer festival adds 200 pints of demand at every price, and the market settles at a new match: 6 dollars and 500 pints.
Here's the trap. People hear "shortage" and think the sellers ran out. But at 4 dollars the sellers still brought 300 pints. A shortage means the price sits below the match.
Week 2 also placed the cart in its market. Monopolistic competition is a market structure with many sellers of slightly different products and easy entry for new sellers. Lots of places sell coffee, each drink is a little different, and a new cart can set up nearby. That's why the cart has to give buyers a reason to choose it.
Pause and try this. At 4 dollars a pint, why is there a shortage, if sellers still bring 300 pints?
Compare the price with the match.
Here's the answer. The price sits below the 5-dollar match, so buyers want 500 pints while sellers offer only 300.
Below the match, a shortage. Above it, a surplus.
3. Needs equal sources
Picture the cart's owner at a kitchen table before opening day, with two lists. One says what the cart needs: cart and equipment of 20,000 dollars, opening inventory of 2,000, and a cash cushion of 8,000. That adds to 30,000 dollars. The other list says where the money comes from: 20,000 of the owner's own money and a 10,000-dollar equipment loan. That's 30,000 too. The two lists match, so every dollar has a source. And the loan costs 10 percent a year, so the first year's interest is 1,000 dollars.
Week 3 also gave us a framework for reading the cart's industry. The five forces are a classroom model from Porter (1979), "How Competitive Forces Shape Strategy." It reads an industry's competition through five forces: new entrants, the power of customers, the power of suppliers, substitutes, and rivalry. For the cart, the chain café is rivalry and a possible new entrant. The bean supplier holds supplier power. And bottled cold brew in a grocery store is a substitute.
Pause and try this. Is bottled cold brew in a grocery store a rival seller or a different force?
Think about what a buyer could choose instead.
Here's the answer. It's a substitute, a different product a buyer could pick instead of a cart drink.
So the five forces aren't five competitors. A supplier and a substitute count as forces too.
4. Who's on the hook
Picture the worst case. The cart fails, and nothing from it goes toward the 10,000-dollar loan. Who pays? Week 4's distinction is that the answer depends on the legal form.
Personal exposure is the most an owner could lose personally if a business fails: the money the owner put in plus any business debt the owner must repay from personal assets.
As a sole proprietor, the owner loses the 20,000 put in and still owes the 10,000 loan personally. That's an exposure of 30,000 dollars. As a single-member LLC, the loan is the LLC's debt, so the owner can lose the 20,000 put in but not the loan. That's an exposure of 20,000 dollars. The shield removes 10,000 dollars, the amount of the loan. That's why the case chose the LLC, as an illustration and not as advice for any real business.
Here's the trap. "Limited liability" sounds like "can't lose money." But the LLC's owner can still lose the whole 20,000 put in. The shield guards the owner's personal assets beyond the stake, not the stake itself.
Pause and try this. If the cart fails as an LLC, can the owner still lose money?
Think about the 20,000 dollars already put in.
Here's the answer. Yes, the owner can lose the 20,000 put in; the shield protects only personal assets beyond that.
The shield guards the house, not the stake.
5. Legal is the floor
Picture a bike shop that learns a brake part it has sold for years wears out early. In the case, no rule requires it to warn past buyers. Is staying quiet legal? Yes. Is it right? That's a separate question.
Legality is whether the law allows an act. The law sets a minimum that conduct must not fall below, so a legal act can still be unethical. Business ethics is the standards of right and wrong that guide the choices people make in a business, including choices the law leaves open.
Week 5's case was an appliance-parts plant in a small town with 120 employees. Automating one line eliminates 40 positions, and 15 of those workers are retrained for maintenance roles. The net change is 25 positions, so the plant ends with 95 employees. Both sides accept that count. They disagree about whether the change is right.
The shareholder position, from Friedman (1970), holds that within the law and ethical custom an executive's duty runs to the owners. The stakeholder position, from Freeman (1984), holds that a firm is managed for everyone who can affect it or is affected by it. We keep both at full strength, and I won't pick a winner for you.
Pause and try this. Does "legal" settle whether the bike shop should warn its past buyers?
Run the two tests separately.
Here's the answer. No; staying quiet is legal in the case, but whether it's right is an ethical question the law leaves open.
Legal is the floor. Ethics asks about the rest of the room.
6. The slowest step sets the speed
Picture the cart at the morning rush. The counter is quick, about 1 minute per order. The espresso machine takes 2 minutes per drink. A bottleneck is the slowest step in a process, the one that limits how much the whole process can produce. Here it's the machine.
So the cart's capacity is set by those 2 minutes. That's 30 drinks an hour, and 120 drinks in a four-hour rush. Add a second machine and a second person, and preparation runs at an effective 1 minute per drink. Now the counter is the limit, and capacity rises to 60 drinks an hour.
A hospital kitchen sending meal trays up to its wards works the same way. If plating is slower than cooking, plating sets how many trays go out, and a faster stove changes nothing.
Pause and try this. If the counter got faster but the cart kept one machine, would capacity change?
Find the slowest step first.
Here's the answer. No; the one machine is still the bottleneck, so capacity stays at 30 drinks an hour.
Every drink waits its turn at the slowest step.
7. Divide by what's left over
Picture the menu board: 5 dollars a drink. Each drink costs 2 dollars for the cup, lid, beans, and milk. So each drink leaves 3 dollars toward the cart's fixed costs of 36,000 dollars a year. The break-even point is the number of units a business must sell to cover all its costs, found as fixed costs divided by the price minus the variable cost per unit.
That's 36,000 divided by 3, or 12,000 drinks a year. Over 250 operating days, that's 48 drinks a day. And notice it fits inside Week 6's ceiling: at 30 drinks an hour, 48 drinks is under two hours of work.
The classic slip divides by the price and gets 7,200 drinks. That's too few, because 2 of every 5 dollars pay for the cup and what's in it.
Week 7's distinction uses the same 3-dollar gap twice. Divide it by the cost of 2 dollars and you get a markup on cost of 150 percent. Divide it by the price of 5 dollars and you get a margin on price of 60 percent. Same gap, two different divisors.
Pause and try this. Why is the markup on the cart's drink bigger than its margin?
Look at what each one divides by.
Here's the answer. The markup divides the 3-dollar gap by the 2-dollar cost, and the margin divides it by the 5-dollar price.
A smaller divisor gives the bigger percentage.
8. One cart becomes two
Now the new part. Picture the owner on the first morning with two carts, one at the office building and one at the farmers' market across town. The owner can stand at only one of them. Someone at the other cart has to make calls, train the barista, and phone when the machine jams. That's the growth question.
Organizational structure is the way a business divides its work into positions and links those positions through reporting relationships, so each person knows who does what and who answers to whom. An organization chart is a diagram of that structure. It shows each position as a box and draws a line from each position to the manager it reports to directly.
At one cart, the chart is small: the owner over one part-time helper. That's 2 people on 2 levels. At two carts, the owner is over two cart leads, and each lead is over two part-time baristas. That's 7 people on 3 levels.
Span of control is the number of people who report directly to one manager. At two carts, the owner's span is 2, the two leads. Each lead's span is 2 as well, the two baristas.
One more distinction. A line position does an organization's core work, or directly manages it. A staff position advises and supports the people in line positions. Everyone on the cart's chart holds a line position. In a hospital kitchen, the cooks hold line positions, and a dietitian who advises them holds a staff position.
Pause and try this. At two carts the business has 7 people, so is the owner's span of control 7?
Count only the lines that run straight into the owner's box.
Here's the answer. No; the owner's span is 2, because only the two cart leads report to the owner directly.
Count the lines into one box, not the boxes on the page.
9. Who decides, and how tall
Picture a city transit agency. If every route change waited for the director, nothing would move. If every driver set routes alone, riders couldn't plan a trip. Every organization picks a spot between those extremes.
Centralization keeps most important decisions with the top managers. Decentralization hands decision-making authority down to managers and employees closer to the work.
The two-cart business faces that choice. The 5-dollar price is the number the 12,000-drink break-even rests on, so the owner might keep it at the top. A cart lead who knows when the farmers' market gets busy could set that cart's morning schedule. That split is a judgment about speed, consistency, and trust.
Charts also differ in height. A tall structure has many levels of management, and each manager has a narrow span of control. A flat structure has few levels, and each manager has a wide span. The two-cart chart is the taller choice: 3 levels with a span of 2. A flat choice drops the cart-lead level, and the owner is directly over all 6 others on 2 levels.
A community food bank shows that flat doesn't mean leaderless. Its volunteer coordinator might be the only manager, and the coordinator still makes decisions.
Pause and try this. If the two-cart business went flat, would it still have a manager?
Ask who decides each thing.
Here's the answer. Yes; the owner would still manage, now with a span of 6 instead of 2.
Flat isn't leaderless, and handed down isn't let go.
Closing
Let me pull it together. Revenue isn't profit, and a SWOT sorts inside or outside first. The strawberry market settles at 5 dollars and 400 pints, and a shortage means the price sits below the match. The cart's 30,000 dollars of needs match its sources, and the five forces aren't five rivals. The LLC cuts the owner's exposure from 30,000 to 20,000 dollars, not to zero. Legal isn't the same as right. The slowest step sets capacity at 30 drinks an hour. The break-even is 12,000 drinks, and one gap gives a 150 percent markup and a 60 percent margin. And when one cart becomes two, the chart grows to 7 people on 3 levels, with a choice about where decisions sit and how flat to go.
Next in this module come the slide deck, the Readings and Resources page, the practice set, the discussion, and the midterm. The midterm covers what we taught in Weeks 1 to 7, and AI isn't permitted on it. Then Week 9, Reaching More Customers: Distribution, Promotion & Digital Commerce, takes the growing cart to more buyers.
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