This paper investigates how systematic risk varies over the lifecycle of the firm. If market equity beta is determined by firm characteristics as the literature on the determinants of systematic risk holds, and if those characteristics change over the lifecycle of the firm following a definite pattern as firm lifecycle theory suggests, then market equity beta should change over the lifecycle of the firm following a predictable pattern. Our findings indicate that holding other determinants of beta constant, the coefficient of systematic risk tends to fall in magnitude following a nonlinear pattern as firm age increases. In addition, we find that the volatility of market equity beta also tends to fall over the lifecycle of the firm. We argue that our main variable of concern, that is, firm age, proxies for variables that have hitherto been omitted in the literature on the determinants of systematic risk. In particular, we maintain that firm age proxies for the mispricing propensity that young firms lose as they mature. This research is useful for both practitioners and researchers in that it may suggest ways to adjust empirical estimates of systematic risk. In addition, our results are important for research on beta forecasting as they show that the length of the stationary interval of betas is shorter for young companies, and therefore it is necessary to take into account this time varying characteristic in the estimation process in order to improve the beta forecasting.

The weighted average cost of capital over the lifecycle of the firm: is the overinvestment problem of mature firms intensified by a higher WACC? AbstractFirm lifecycle theory predicts that the Weighted Average Cost of Capital (WACC) will tend to fall over the lifecycle of the firm (Mueller, 2003, p. 80-81). However, given that previous research finds that corporate governance deteriorates as firms get older (Mueller and Yun, 1998;Saravia, 2014) there is good reason to suspect that the opposite could be the case, that is, that the WACC is higher for older firms. Since our literature review indicates that no direct tests to clarify this question have been carried out up till now, this paper aims to fill the gap by testing this prediction empirically. Our findings support the proposition that the WACC of younger firms is higher than that of mature firms. Thus, we find that the mature firm overinvestment problem is not intensified by a higher cost of capital, on the contrary, our results suggest that mature firms manage to invest in negative net present value projects even though they have access to cheaper capital. This finding sheds new light on the magnitude of the corporate governance problems found in mature firms.

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By developing meta-frontier efficiency and structural equation models, the paper examines whether farm economic viability is positively associated with technical efficiency in a highly food insecure context, such as that of rural Sierra Leone. The findings show that technical efficiency can be a sufficient but not necessary condition in determining economic viability of smallholder farming. It is possible to breach reproductive thresholds at the cost of reduced technical efficiency, when the crop diversification strategy of smallholders includes market-oriented high-value crops. This calls for a dual policy approach that addresses farmers’ internal needs for self-consumption (increasing efficiency of food crop production) while encouraging market-oriented cash crop production (diversification assisted through the reduction of associated transaction costs and the establishment of accessible commercialization channels of export related crops and/or high-value crops). The work also calls out for a move-up or move-out strategy for small holders to create viable farming systems in developing world.

This paper examines the Transaction Cost Economics (TCE) theory of capital structure and finds that for the case of equity the usual TCE logic is not fully worked out. In particular, an analysis of the key issue of bilateral dependency between the firm and its shareholders is absent. To fill this gap in the literature, the paper further develops the theory of the equity governance structure by taking account of the concept of bilateral dependency over the lifecycle of the firm. The paper finds that, both theoretically and empirically, contractual hazards are indeed mitigated for the case of fast growing young firms which are dependent on shareholders to finance future growth. In contrast, for the case of mature firms, which in virtue of their large free cash flows are independent from shareholders, contractual safeguards are altered to the disadvantage of shareholders and consequently managerial discretion costs increase.

According to firm lifecycle theory the agency costs of free cash flows are not transitory problems, but are a recurrent issue once firms reach a certain stage in their lifecycle. In particular, as firms mature their cash flows increase substantially while their investment opportunities decline and, to prevent retrenchment, managements need to invest in negative net present value projects. However, too much overinvestment leads to low firm valuation and potentially a hostile takeover. This paper extends firm lifecycle theory by arguing that to neutralize the threat of takeover, managements of maturing firms and their boards of directors progressively deploy antitakeover provisions which allow them to overinvest safely and prevent a decline in the size of their corporations. Firm lifecycle theory is also tested empirically. In this respect, a contribution of this paper is to develop a new empirical index that permits the identification of mature corporations with governance problems due to agency costs of free cash flows. The empirical results show that as firms mature agency costs of free cash flows increase, more antitakeover provisions are put into place and firms invest in projects with returns below their cost of capital.

According to firm lifecycle theory the agency costs of free cash flows are not transitory problems, but are a recurrent issue once firms reach a certain stage in their lifecycle. In particular, as firms mature their cash flows increase substantially while their investment opportunities decline and, to prevent retrenchment, managements need to invest in negative net present value projects. However, too much overinvestment leads to low firm valuation and potentially a hostile takeover. This paper extends firm lifecycle theory by arguing that to neutralize the threat of takeover, managements of maturing firms and their boards of directors progressively deploy antitakeover provisions which allow them to overinvest safely and prevent a decline in the size of their corporations. Firm lifecycle theory is also tested empirically. In this respect, a contribution of this paper is to develop a new empirical index that permits the identification of mature corporations with governance problems due to agency costs of free cash flows. The empirical results show that as firms mature agency costs of free cash flows increase, more antitakeover provisions are put into place and firms invest in projects with returns below their cost of capital.

The weighted average cost of capital over the lifecycle of the firm: is the overinvestment problem of mature firms intensified by a higher WACC? AbstractFirm lifecycle theory predicts that the Weighted Average Cost of Capital (WACC) will tend to fall over the lifecycle of the firm (Mueller, 2003, p. 80-81). However, given that previous research finds that corporate governance deteriorates as firms get older (Mueller and Yun, 1998;Saravia, 2014) there is good reason to suspect that the opposite could be the case, that is, that the WACC is higher for older firms. Since our literature review indicates that no direct tests to clarify this question have been carried out up till now, this paper aims to fill the gap by testing this prediction empirically. Our findings support the proposition that the WACC of younger firms is higher than that of mature firms. Thus, we find that the mature firm overinvestment problem is not intensified by a higher cost of capital, on the contrary, our results suggest that mature firms manage to invest in negative net present value projects even though they have access to cheaper capital. This finding sheds new light on the magnitude of the corporate governance problems found in mature firms.