๐ก How to read this map: follow the diagram top to bottom for the main decision flow. The solid white arrows show one concept feeding directly into the next. The dashed gold arrows show feedback loops โ places where a later decision loops back and changes an earlier number.
The whole diagram is really one big loop: every chapter exists to answer the same question asked in Chapter 1 โ does this decision make shareholders wealthier?
Reading the Interplay โ In Plain English
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Step 1 โ 2 : Tools before decisions
You can't value anything without Time Value of Money (moving cash flows across time) and Risk & Return (pricing uncertainty via beta/CAPM). These two chapters are pure toolkit โ every later chapter borrows from them.
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Step 2 โ 3 : Tools combine into a hurdle rate
Cost of Capital (WACC) is literally TVM's discounting logic plus CAPM's risk premium, blended across debt, preferred, and equity financing.
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Step 3 โ 4 : The hurdle rate decides what to build
Capital Budgeting takes WACC as the discount rate in NPV and as the benchmark for IRR โ this is where the firm decides which real assets to invest in.
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Step 4 โ 5 : Every investment needs financing
Once a project is approved, the firm must decide how to pay for it โ this is Capital Structure. But the debt/equity mix chosen here feeds back and changes WACC itself (the dashed loop) โ these two chapters constantly influence each other.
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Step 5 โ 6 : Profits need a home
Whatever earnings remain must either be retained (a source of equity financing that flows back into Capital Structure) or paid out as dividends. This is why Dividend Policy sits right next to Capital Structure in the loop.
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Step 6 โ 7 โ 1 : Back to the beginning
Good investment choices (positive NPV), an efficient financing mix (lower WACC), and a well-read dividend signal all raise the stock price โ which is exactly the Chapter 1 goal the whole map started with.