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Real options theory begins by drawing an analogy between real options and financial options. A financial option is a derivative security whose value is derived from the worth and characteristics of another financial security, or the so-called underlying asset. By definition, a financial option gives its holder the right, but not the obligation, to buy or sell the underlying asset at a specified price (i.e., the exercise price) on or before a given date (i.e., the expiration date). Financial economists Black and Scholes (1973) and Merton (1973) pioneered a formula for the valuation of a financial option, and their methodology has opened up the subsequent research on the pricing of financial assets and paved the way for the development of real options theory.

The application of real options theory to international strategy has surged in recent years. However, it is still a relatively new and loosely defined field, and there are several constraints on practical applications of this powerful theory. To move forward this field, the paper first provides a systematic analysis of theoretical and empirical contributions of real options theory to three critical issues in international strategy: (1) valuing multinational networks, (2) assessing market entry modes, and (3) evaluating market entry timing. The paper further suggests that future studies can focus on a refined treatment of uncertainty and the development of a dynamic theory in international strategy. Five testable propositions are developed in these directions.

We discuss recent developments in real options theory and its applications to strategic management research, examine the potential difficulties in implementing real options in theory and practice, and propose several areas for future research. Our review shows that real options theory has provided substantial insights into investment and exit decisions as well as into the choice of investment modes. In addition, extant research studies have contributed significantly to our understanding of whether and how organizations can benefit from real options. Future research that addresses difficulties in applications will further advance both real options theory and practice in strategic management. We call for future generations of research to enhance the impact of real options as an emerging dominant conceptual lens in strategic management.

This paper categorizes and critiques the empirical research strategies that have been employed to test real options theory. Existing research has sought to detect valuable options in firms’ strategic investments as well as to investigate the payoffs from these investments. Our review highlights some of the evidence that has accumulated in recent years for real options theory. We flag some of the most important challenges and tradeoffs associated with the use of different empirical research approaches for testing real options theory in strategic management. The paper concludes by offering a number of research priorities to advance the theory by probing its descriptive validity as well as by addressing its normative aspirations to bridge corporate finance and strategy.

The interpretation and valuation of real options by means of options pricing theory can be regarded as a relatively new paradigm of investment theory. Option pricing theory based investment valuation represents a sound theoretical basis and offers principally a simple decision base. The approach recognises entrepreneurial flexibility and risk explicitly. It implies a positive correlation between flexibility respectively uncertainty and the value of options. Traditional deterministic‐dynamic standard methods of valuation are not able to value flexibility or risk effectively so that option values are adequately reflected. As property investors gradually embrace modern financial concepts it is clear that real estate valuation theory will have to change. One of the most promising areas that could have an important implication on the further development of valuation is the application of the real options paradigm. The author investigates the transfer of general real options theory through an examination of academic results in the field of real estate development. He comes to the conclusion that current research generates highly academic‐abstract results with limited practical value. So far a limited number of quantitative studies regarding the valuation real estate projects with the real options method have been conducted. Practical valuations have yet to be comprehensively carried out. For doing so, further research concerning the basic prerequisites of real options theory has to be undertaken.

I am interested in clarifying the discussion of how researchers might try to isolate real option effects to identify whether managerial decisions are guided by a real option heuristic. If we are to claim that the theory of real options illuminates managerial behavior, then as a field, we must converge on an understanding as to what constitutes a real option effect, and what does not. The discussion centers on hypothesis development, measurement issues, and research methodology.

The purpose of this chapter is to discuss the potential contribution of the option applications to economic instability. To this end, the chapter briefly reviews the extant literature on financial option pricing and its applications to corporate assets and liabilities. It focuses on the direct relationship between the volatility of the underlying asset and the value of the option. It shows that the theory of option applications by its one-sided emphasis on the value-creating role of volatility promotes excessive risk-taking. Then the chapter discusses how the theory of option applications through the educational system encourages economic agents to make excessively risky decisions. Furthermore, the interactions among these risk-welcoming agents lead to an economic system which becomes increasingly risky. This risky economy, combined with the fact that more than half of the value of the option applications is constituted by the highly volatile value of the options embedded in such applications, translates into wide variations in real investments and the economy.

The paper seeks to develop an analytical theory of project investment.

The authors derive a partial differential equation that the variable cost of a project should satisfy, determine a proper initial condition through a thought experiment, and solve the equation.

A formula of variable cost as an analytical function of fixed cost, uncertainty of the environment and the duration of a project is obtained.

The analytical formula enables systematic comparison of returns of different investment under different market conditions to be made. This refines the insights from real option theory in many ways. Since all production systems need fixed investment to lower variable costs, by providing an analytical theory about the relation among fixed costs, variable costs and uncertainty, this theory contributes a new foundation to investment theory and other different fields.

An analytical theory of project investment about the relation among fixed costs, variable costs, uncertainty of the environment and the duration of a project, which is the core concern in most business decisions, does not exist in the current literature.

The purpose of this paper is to use some of the contributions of the option pricing theory to solve three outstanding puzzles in finance: the underdiversification puzzle, the volatility puzzle and the equity premium puzzle.

To approach the issue, this paper considers the applications of the option pricing theory to both sides of the corporate balance sheet. Applications to the left-hand side of the balance sheet has led to the real options theory that has expressed the value of a capital budgeting project as the sum of the values of its “discounted cash flow (DCF) method” and “real options.” This paper argues that, because the balance sheet must balance, the value of equity, which appears on the right-hand side of the balance sheet, should also be expressed as the sum of the values of its “DCF method” and “equity options.”

This proposed model of equity valuation solves the three outstanding puzzles in finance: the underdiversification puzzle, the volatility puzzle and the equity premium puzzle.

This study may not be able to explain the full extent of the three puzzles.

The dividend discount model of equity valuation needs to be augmented by an option component.

The community of finance scholars will become more confident of their scholarly work because three puzzles will be solved to a great extent.

To the best of author’s knowledge, the extant literature does not either solve any single one of the three puzzles through the contributions of option pricing theory or solve all three puzzles at the same time with a single solution. The originality of this paper is that it makes both of these contributions to the extant literature.