science

Market timing hypothesis

Market timing hypothesis is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Market timing hypothesis rather than just read about it. In short: The market timing hypothesis, in corporate finance, is a theory of how firms and corporations decide whether to finance their investment with equity or with debt instruments. Here, equity market timing refers to "the practice of issuing shares at high prices and repurchasing at low prices, [where] the intention is to exploit temporary fluctuations in the cost of equity relative to the cost of other forms of capital".

Key takeaways

Market timing hypothesis belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Market timing hypothesis to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Market timing hypothesis from memory before moving on to harder problems.

Reference excerpt

The market timing hypothesis, in corporate finance, is a theory of how firms and corporations decide whether to finance their investment with equity or with debt instruments. Here, equity market timing refers to "the practice of issuing shares at high prices and repurchasing at low prices, [where] the intention is to exploit temporary fluctuations in the cost of equity relative to the cost of other forms of capital". It is one of many such corporate finance theories; it is often contrasted with the pecking order theory and the trade-off theory. It is differentiated by its emphasis on the level of the market, which is seen as the first order determinant of a corporation's capital structure: the (further) implication being that firms are generally indifferent as to whether they finance with debt or equity, choosing the form of financing, which, at that point in time, seems to be more valued by financial markets. More generally, the Hypothesis is classified as part of the behavioral finance literature. Here, it does not attempt to explain why there would be any asset mispricing, or why firms would be better able than the than "the market" in telling that there is mispricing (see Efficient-market hypothesis). Rather, it simply assumes that mispricing exists, and describes the behavior of firms under various market and corporate outcomes. However, any theory with time varying costs and benefits is likely to generate time varying corporate issuing decisions. This is true whether decision makers are behavioral or rational. The empirical evidence for the hypothesis is mixed. On the one hand, current capital structure appears strongly related to historical market values, suggesting that "capital structure is the cumulative outcome of past attempts to time the equity market". On the other, studiesshow that the effect of market timing disappears after as little as two years. In particular, "the impact of market timing on leverage completely vanishes", with debt issued following equity financing during earlier hot equity periods. Further, the (standard version of) the hypothesis is said to be somewhat incomplete as relates to theory. Beyond empirical study, as alluded to, a model is needed to explain why at the same moment in time, some firms issue debt while other firms issue equity.

See also Corporate finance § Capitalization structure Pecking order theory Trade-off theory Modigliani–Miller theorem Capital structure substitution theory Dividend policy § Dividend signaling hypothesis Outline of corporate finance § Theory

References

Worked examples

Example 1 — a first encounter with Market timing hypothesis

Start with the simplest possible case. Write down what Market timing hypothesis claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Market timing hypothesis before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Market timing hypothesis ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Market timing hypothesis

In research: Market timing hypothesis appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Market timing hypothesis in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Market timing hypothesis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Corporate finance, Debt, Finance theories, so understanding it makes those chapters shorter.
In everyday life: Look for Market timing hypothesis outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Market timing hypothesis in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Market timing hypothesis means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Market timing hypothesis out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Market timing hypothesis in simple terms?

Why does Market timing hypothesis matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Market timing hypothesis?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Market timing hypothesis.