WAJD Learning

Recording script

Investment appraisal techniques

  • 1modules
  • 343words
  • 2minutes when read
  • 2voices

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How to record this

Amara is the host. Curious, a little sceptical, asks the question the learner is actually thinking, and pushes back when something sounds unrealistic on a short staffed shift.

Nadia is the practice educator. Warm, direct, never condescending. Answers the awkward question rather than deflecting it.

Leave a beat of silence between speakers rather than overlapping. Timestamps assume 150 words per minute, which is a natural teaching pace. Cue numbers mark where each on screen graphic should land.

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1. Payback, net present value and the sunk cost trap

About 2 minutes, 343 words. Starts at 00:00 in the full course recording.

Outcomes to state on camera

Script

Cue 1 Two projects with identical payback and very different lifetime returns.

AMARA 00:00 Payback period. Everyone uses it. What is wrong with it?

NADIA 00:04 Nothing is wrong with it as a first filter, and it survives because everybody in the room understands it instantly, which matters more than people admit. But it is blind in two directions.

AMARA 00:17 Go on.

Cue 2 Discounting a future cash flow back to present value, year by year.

NADIA 00:18 It ignores everything after the payback point. A project paying back in three years then earning nothing beats a project paying back in four then earning for fifteen. And it treats a pound in year four as identical to a pound today.

AMARA 00:34 Which it is not.

NADIA 00:36 Which it is not, for three reasons. Today's pound could be earning in the meantime. Inflation eats what the later one buys. And the later one might never turn up at all.

Cue 3 Net present value calculation laid out as a table.

AMARA 00:49 So net present value fixes that.

NADIA 00:51 It does, by discounting every future amount back into today's money so you can add them up honestly. Positive net present value means the project beats your required return. When two techniques disagree, trust this one.

AMARA 01:06 Where is the catch?

Cue 4 The same project at two defensible discount rates, giving opposite answers.

NADIA 01:07 The discount rate. It carries the entire answer, and it is chosen by a person. I can take one project and make it obviously worthwhile or obviously not, using two rates that are both defensible.

AMARA 01:21 So how do I protect against that?

NADIA 01:24 State the rate openly, and test the decision at a higher one. If the answer flips the moment you are slightly more cautious, the project is marginal and everybody should know that before signing.

Cue 5 Sunk cost crossed out of an appraisal, future cash flows circled.

AMARA 01:37 Last one, and this is the meeting I always lose. We have spent two hundred thousand pounds already.

NADIA 01:45 Then that two hundred thousand is irrelevant. It is gone whatever you decide today. The only question is whether the future cash from continuing beats the future cash from stopping.

AMARA 01:57 It never feels irrelevant.

NADIA 01:58 It never does, because stopping feels like admitting the first decision was wrong, and the person who made it is usually sitting at the table. That discomfort is not free. It is paid for with every further pound put into something that should already have ended.

Sources for the on screen credit