Principles of Corporate Finance — Brealey, Myers & Allen: COMPLETE

The book's approach is radical in its simplicity: a company is a collection of decisions, and finance's whole task is to separate decisions that create value from decisions that merely move money. The two basic decisions: the investment decision — which projects should the company put capital into? — and the financing decision — where should the capital come from: owners, lenders, the market? Around them revolve the two follow-up decisions: the dividend policy (what leaves the company) and the risk management (what gets protected).

The chief financial officer stands, as the book puts it, between the company's inside — factories, projects, agreements — and the capital market's outside, where future cash flows are priced today. Worked example of value creation straight from the book's logic: a project that costs 800 today and whose future cash flows are worth 1 000 on the market creates 200 in present value — the owners become 200 richer because the company does it, and no one else loses. The whole book is that sentence played out over fourteen hundred pages.

The fundamental ideas the book returns to throughout the arc: present value — the value of everything is the sum of its future cash flows' price today; the opportunity cost of capital — the discount rate is not a parameter but a market price on time and risk; cash flow before accounting profit — the income statement is an opinion, cash is the truth (the Higgins course's red thread, here as a theorem); the risk premium — risk is not a fault to avoid but a price formation to understand; the incentives — owners, managers, and lenders want different things, and the construction of agreements steers behavior; the efficient markets — prices gather information faster than the analyst can read it, which does not mean they are always right; and the option's asymmetry — rights without obligations are valued differently than everything else.

None of these ideas is difficult on its own. The book's feat is weaving them into a single story where each chapter is the predecessor's consequence.

And the bible's AK1A role, which the course builds in fourteen chapters. Toward AKM1: NPV thinking is V04–V06's content — a multiple is a discount rate and a growth expectation packaged; capital structure theory is V10's; the dividend and share buyback doctrine is V20's; portfolio theory is V03's diversification logic; risk management is V12's stability underpinning. Toward AK1TS: the wave engine reads the price's movements on five horizons — micro, short, medium, long, mega — and the bible delivers the fundamental's corresponding time axis: the discount rate is the price of time, beta is the price of risk, duration is the sensitivity to time.

Confluence — the meeting between the fundamental wave and the price wave, the ecosystem's core — presupposes that both time series can be counted. The course's promise, the reverse of the Higgins course's: where the handbook teaches the room (the financial statements' mechanics), the bible teaches time and risk (the cash flow's price) — together they cover the underpinning for all of AKM1, and AK1TS meets them in the price.

The formula: PV = C1 / (1 + r) + C2 / (1 + r)^2 + ... — every future amount is divided by its own time factor, and r is the opportunity cost of capital: the return the market gives for investments with the same risk. It is that definition that makes the rule a rule and not a preference: a project with positive NPV beats the market's own offer at the same risk, and therefore it creates value — regardless of who owns it, regardless of how it feels. Worked example: invest 1 000, receive 400 per year for four years, required rate of return 10 percent — the annuity factor 3,1699 gives a present value of 400 × 3,1699 = 1 268; NPV = 1 268 − 1 000 = +268.

The mirror machine: future value — 100 left standing two years at 10 percent becomes 100 × 1,21 = 121 — and there is the compound interest rate — the shared engine of saving and pensions, and the reason twenty years of patience beats almost all activity.

Nominal versus real — the book's consistency rule: flows that grow with the inflation are discounted with a nominal interest rate, flows in fixed prices with a real interest rate, and whoever mixes gets systematically wrong. The relation: (1 + nominal) = (1 + real) × (1 + inflation) — at 10 percent nominal and 4 percent inflation the real interest rate is 1,10 / 1,04 − 1 = about 5,8 percent. Then the NPV rule against its rivals, which the book puts down one at a time: the accounting profit rule (profit is opinion, see chapter three), the payback period (ignores everything after the boundary and the time before the price — chapter four takes it seriously), and the what-feels-right rule (which is most decisions' real algorithm).

NPV's superiority is mathematical: it measures kronor of wealth, adds across projects (value additivity — three projects with NPV +100, +50, and −20 are together +130, neither more nor less), and separates size from return. That is also its weakness, for it requires the future to be estimated — and that is where the venture capitals begin.