Abstract
The potential influence of accounting regulations on hedging strategies and the use of financial derivatives is a research topic that has attracted little attention in both the finance and the accounting literature. However, recent surveys suggest that company hedging can be substantially influenced by the accounting for financial instruments. In this study, we illustrate not only why but also how the accounting regulations may affect hedging behavior. We find that under mark-to-market accounting, most firms concerned with earnings smoothness adopt myopic hedging strategies relative to the benchmark, cash flow hedging. The specific influence of the accounting regulations depends on market and firm-specific characteristics, but, in general, the firms dramatically reduce the extent of hedging addressing price risk in future accounting periods. We illustrate that the change in hedging behavior significantly dampens the increase in earnings volatility stemming from fair value accounting of derivatives. However, the adjusted hedging strategies may substantially increase the firms’ cash flow volatility.
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Notes
IAS 39 is part of IFRS (International Financial Reporting Standards), whereas SFAS 133 is part of US GAAP (Generally Accepted Accounting Principles). The IFRS are the most widely used accounting regulations throughout the world, followed by the US GAAP. IAS 39 and SFAS 133 are, for all practical purposes, similar for the particular questions addressed in this study.
The designations of derivatives for accounting purposes are either fair-value hedges or cash flow hedges. Whereas a cash flow hedge results when derivatives are employed to hedge the exposure to expected future cash flows, a fair-value hedge protects the fair value of recognized assets and liabilities or firm commitments (Comiskey and Mulford 2008). This study focuses exclusively on cash flow hedging, and a premise for the analysis presented is that a cash flow hedge differs fundamentally from a fair-value hedge.
IAS 39 and SFAS 133 do not endorse a specific testing methodology to be applied to qualify for hedge accounting; see the discussion in Finnerty and Grant (2002).
Accruals unrelated to the hedging instrument are disregarded in this model.
In its exposure draft, the IASB recognizes no ineffectiveness for “under-hedges” (IASB 2010), i.e., where the cumulative change in the fair value of the hedging instrument is less than the cumulative change in the fair value of the hedged item.
In general, as changes in derivatives’ value in any case is part of “other comprehensive earnings”, the hedge accounting regulations offer no solution for companies concerned with the smoothness of comprehensive earnings.
The AIC and the BIC information criteria for selecting an ARMAX model among the four alternatives AR(1), AR(2), ARMA(1,1), and ARMA(2,2) both preferred the AR(1) representation of \(S_t^*\), given a linear time trend. The correlations \(\rho _{\tilde{Q}_1 ,\tilde{S}_1}, \rho _{\tilde{Q}_2, \tilde{S}_2}\) and \(\rho _{\tilde{Q}_1 , \tilde{F}_{1,2}} \) must be pinned down from other sources.
We stress that the ineffectiveness is caused by imperfect hedging instruments and not speculation. There is no speculation in our model. Speculative positions in derivatives should in any case be marked to market.
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We would like to thank workshop participants at the 2011 AAA Annual Meeting in Denver, Colorado, and an anonymous referee for helpful suggestions and advice.
Appendices
Appendix A: Proof of proposition 1
Let \(\tilde{S}_t \) and \(\tilde{Q}_t \) denote the random spot price and the random quantity produced in period \(t\), respectively, \(c\) the constant marginal cost, \(C\) fixed costs, \(F_{0,t}\) the forward price at \(t = 0\) with maturity at time \(t\), and \(a_t \) the number of long positions in forward contracts with delivery at time \(t\) entered into at \(t = 0\). A firm faces random cash flows \(\widetilde{CF_1 }\) equal to
The variance of the cash flow is equal to
A firm minimizing the volatility of the cash flow solves the following condition (interior solution):
Under bivariate normality, it follows from Lemma 2 in Sévi (2006) that the optimal number of forward contracts for period 1 is equal to
Because forward contracts covering future periods do not affect cash flows in the previous periods, this expression for the optimal number of forward contracts is general and holds for any random year t.
We now assume that we have a two-period setting. Under mark-to-market accounting, the earnings in period (year) 1 is equal to
The variance of earnings in period 1 equals
A firm minimizing the volatility of earnings under mark-to-market accounting at \(t = 0\) solves the following conditions (interior solution):
Following Theorem 17.10 in Sydsaeter and Hammond (1995) and the fact that
the variance function is strictly convex. Therefore, the solutions of the two first-order conditions define the unique global minimum value (Theorem 17.11). Given Eq. (22), these two solutions are defined by the following two simultaneous equations:
where \(A\!=\!\mathrm{cov}(\tilde{S}_1 \tilde{Q}_1 ,\tilde{S}_1 ), B\!=\!\mathrm{var}\left( {\tilde{S}_1 } \right), C\!=\!\mathrm{cov}\left( {\tilde{S}_1 ,\tilde{F}_{1,2} } \right), D\!=\!\mathrm{cov}(\tilde{S}_1 \tilde{Q}_1 ,\tilde{F}_{1,2} ), E=\mathrm{var}\left( {\tilde{F}_{1,2} } \right)\), \(F=\mathrm{cov}\left( {\tilde{Q}_1 ,\tilde{S}_1 } \right)\), and \(G=\mathrm{cov}\left( {\tilde{Q}_1 ,\tilde{F}_{1,2} } \right)\) yields the solutions
Reinserting the definitions of the constants yields the optimal number of forward contracts entered into at \(t = 0\) under general distributional assumptions:
These optimal numbers of forward contracts collapse into the following equations under multivariate normality by using Lemma 2 in Sévi (2006)
Appendix B: Detailed specification of the simulation assumptions of Section 4
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1)
Earnings targets (predictions at time t for the earnings of time t +1 and t+2) Before:
$$\begin{aligned} \widehat{CF}_{t,t+1}&= \left( {E_t \left[ {\tilde{S}_{t+1} } \right]-c^{*}T_{t+1} \left( \Phi \right)} \right)\mu _Q +\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} -C^{*}T_{t+1} \left( \Phi \right)\nonumber \\&\quad +a_{1,t}^{CF} \left( {E_t \left[ {\tilde{S}_{t+1} } \right]-F_{t,t+1} } \right)+a_{2,t-1}^{CF} \left( {F_{t,t+1} -F_{t-1,t+1} } \right) \end{aligned}$$(33)$$\begin{aligned} \widehat{CF}_{t,t+2}&= \left( {E_t \left[ {\tilde{S}_{t+2} } \right]-c^{*}T_{t+2} \left( \Phi \right)} \right)\mu _Q +\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} -C^{*}T_{t+2} \left( \Phi \right) \nonumber \\&\quad +a_{2,t}^{CF} \left( {E_t \left[ {\tilde{S}_{t+2} } \right]-F_{t,t+2} } \right) \end{aligned}$$(34)After, same strategy:
$$\begin{aligned} \widehat{Earn}_{t,t+1}^{CF}&= \left( {E_t \left[ {\tilde{S}_{t+1} } \right]-c^{*}T_{t+1} \left( \Phi \right)} \right)\mu _Q +\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} -C^{*}T_{t+1} \left( \Phi \right) \nonumber \\&+ a_{1,t}^{CF} \left( {E_t \left[ {\tilde{S}_{t+1} } \right]\!-\!F_{t,t+1} } \right) \!+\!a_{2,t}^{CF} \left( {E_t \left[ {\tilde{S}_{t+2} } \right]\!-\!F_{t,t+2} } \right) \end{aligned}$$(35)$$\begin{aligned} \widehat{Earn}_{t,t+2}^{CF}&= \left( {E_t \left[ {\tilde{S}_{t+2} } \right]\!-\!c^{*}T_{t+2} \left( \Phi \right)} \right)\mu _Q \!+\!\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} \!-\!C^{*}T_{t+2} \left( \Phi \right) \end{aligned}$$(36)After, new strategy:
$$\begin{aligned} \widehat{Earn}_{t,t+1}&= \left( {E_t \left[ {\tilde{S}_{t+1} } \right]-c^{*}T_{t+1} \left( \Phi \right)} \right)\mu _Q +\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} -C^{*}T_{t+1} \left( \Phi \right) \nonumber \\&+a_{1,t}^{M2M} \left( {E_t \left[ {\tilde{S}_{t+1} } \right]\!-\!F_{t,t+1} } \right)\!+\!a_{2,t}^{M2M} \left( {E_t \left[ {\tilde{S}_{t+2} } \right]\!-\!F_{t,t+2} } \right)\quad \end{aligned}$$(37)$$\begin{aligned} \widehat{Earn}_{t,t+2}&= \left( {E_t \left[ {\tilde{S}_{t+2} } \right]-c^{*}T_{t+2} \left( \Phi \right)} \right)\mu _Q +\sigma _\varepsilon \sigma _{\tilde{Q}} \rho _{\tilde{Q},\tilde{S}} -C^{*}T_{t+2} \left( \Phi \right) \end{aligned}$$(38)Other assumptions:
$$\begin{aligned} E_t \left[ {\tilde{S}_{t+1} } \right]&= T_{t+1} \left( \Phi \right)+\varphi S_t^*\end{aligned}$$(39)$$\begin{aligned} E_t \left[ {\tilde{S}_{t+2} } \right]&= T_{t+2} \left( \Phi \right)+\varphi ^{2}S_t^*\end{aligned}$$(40)$$\begin{aligned} c_t&= c^{*}T_t \left( \Phi \right) \end{aligned}$$(41)$$\begin{aligned} C_t&= C^{*}T_t \left( \Phi \right) \end{aligned}$$(42)Consistent with Brown and Toft’s (2002, p. 1291) base case assumptions, we set \(c^{*} = 0.25\) and \(C^{*} = 0.4\). Note that both \(\widehat{Earn}^{CF}\) and \(\widehat{Earn}\) above represent earnings under fair-value accounting, the former using cash flow hedging and the latter using a hedging strategy designed to manage earnings risk under fair-value accounting.
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2)
Net profit decomposition under deferral accounting (FCP = forward contract payoff):
$$\begin{aligned} \widetilde{FCP}_{1,t}^{DA}&= a_{1,t-1}^{CF} \left( {\tilde{S}_t -F_{t-1,t} } \right) \end{aligned}$$(43)$$\begin{aligned} FCP_{2,t}^{DA}&= a_{2,t-2}^{CF} \left( {F_{t-1,t} -F_{t-2,t} } \right) \end{aligned}$$(44)$$\begin{aligned} \widetilde{NP}_t^{NoHedge}&= \tilde{S}_t \tilde{Q}_t -c\tilde{Q}_t -C \end{aligned}$$(45)$$\begin{aligned} \widetilde{CF}_t&= \widetilde{NP}_t^{NoHedge} +\widetilde{FCP}_{1,t}^{DA} +\widetilde{FCP}_{2,t}^{DA} \end{aligned}$$(46) -
3)
Net profit decomposition under fair-value accounting and cash flow hedging: Let F be the forward lag operator. In this case,
$$\begin{aligned} \widetilde{Earn}_t^{CF} =\widetilde{NP}_t^{NoHedge} +\widetilde{FCP}_{t,1}^{DA} +F\left( {\widetilde{FCP}_{t,2}^{DA} } \right) \end{aligned}$$(47) -
4)
Net profit decomposition under fair-value accounting and a hedging strategy designed to manage earnings risk under fair-value accounting:
$$\begin{aligned} \widetilde{FCP}_{1,t}^{M2M}&= a_{1,t-1}^{M2M} \left( {\tilde{S}_t -F_{t-1,t} } \right) \end{aligned}$$(48)$$\begin{aligned} \widetilde{FCP}_{2,t}^{M2M}&= a_{2,t-1}^{M2M} \left( {F_{t,t+1} -F_{t-1,t+1} } \right) \end{aligned}$$(49)$$\begin{aligned} \widetilde{Earn}_t&= \widetilde{NP}_t^{NoHedge} +\widetilde{FCP}_{1,t}^{M2M} +\widetilde{FCP}_{2,t}^{M2M} \end{aligned}$$(50) -
5)
Average root mean squared prediction errors in the sample of M = 10,000 replications over the N = 10 years 2012–2021: Define \(\Theta = \{ \text{ t}: \text{ t}\in \{2012,\ldots ,2021\} \}\). In this case, root mean squared errors are defined as follows for one-year and two-year forecasts, respectively:
$$\begin{aligned} RMSE_{1YR}^{\widehat{CF_{t\in \Theta } }}&= \frac{1}{M}\sum _{i=1}^M {\sqrt{\frac{1}{N}\sum \limits _{t\in \Theta } {\left( {\widetilde{CF}_{t,i} -\widehat{CF}_{t-1,t,i} } \right)^{2}} }} \end{aligned}$$(51)$$\begin{aligned} RMSE_{2YR}^{\widehat{CF}_{t\in \Theta } }&= \frac{1}{M}\sum _{i=1}^M \sqrt{\frac{1}{N}\sum \limits _{t\in \Theta } {\left( {\widetilde{CF}_{t,i} -\widehat{CF}_{t-2,t,i} } \right)^{2}} } \end{aligned}$$(52)$$\begin{aligned} RMSE_{1YR}^{\widehat{Earn}_{t\in \Theta }^{CF} }&= \frac{1}{M}\sum \limits _{i=1}^M {\sqrt{\frac{1}{N}\sum _{t\in \Theta } {\left( {\widetilde{Earn}_{t,i}^{CF} -\widehat{Earn}_{t-1,t,i}^{CF} } \right)^{2}} }} \end{aligned}$$(53)$$\begin{aligned} RMSE_{2YR}^{\widehat{Earn}_{t\in \Theta }^{CF} }&= \frac{1}{M}\sum _{i=1}^M {\sqrt{\frac{1}{N}\sum \limits _{t\in \Theta } {\left( {\widetilde{Earn}_{t,i}^{CF} -\widehat{Earn}_{t-2,t,i}^{CF} } \right)^{2}} }} \end{aligned}$$(54)$$\begin{aligned} RMSE_{1YR}^{\widehat{Earn}_{t\in \Theta }}&= \frac{1}{M}\sum \limits _{i=1}^M {\sqrt{\frac{1}{N}\sum _{t\in \Theta } {\left( {\widetilde{Earn}_{t,i}-\widehat{Earn}_{t-1,t,i}} \right)^{2}} }} \end{aligned}$$(55)$$\begin{aligned} RMSE_{2YR}^{\widehat{Earn}_{t\in \Theta } }&= \frac{1}{M}\sum _{i=1}^M {\sqrt{\frac{1}{N}\sum \limits _{t\in \Theta } {\left( {\widetilde{Earn}_{t,i} -\widehat{Earn}_{t-2,t,i} } \right)^{2}} }} \end{aligned}$$(56)Percentage errors (relative to the targets) are obtained as in Eq. (17).
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Procedure for generating the unhedgeable quantity innovations ((Hull 1997, p. 363)).
The unhedgeable quantity innovations are presumed to be i.i.d. and correlated (corr) with the innovation terms of the ARMAX price dynamics; that is, the quantity innovations are correlated with the \(\varepsilon \)-terms of the price process.
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Step 1: Scale each of the price innovations by multiplying \(\varepsilon \) with the ratio \(\frac{\sigma _{\tilde{Q}}}{\hat{\sigma }_\varepsilon } (\hat{\sigma }_{\varepsilon } =125.1)\). Denote this rescaled series of price innovations \(e_{1}\).
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Step 2: Generate an independent set of normally distributed RVs with zero (expected) mean and standard deviation \(\sigma _{\tilde{Q}}\). Denote this series \(e_{2}\).
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Step 3: Generate a correlated set of bivariately normal innovations price and quantity innovations with zero mean and standard deviations equal to \(\hat{\sigma }_{\varepsilon } =125.1\) and \(\sigma _{\tilde{Q}}\), respectively, by calculating the new series of \(\tilde{Q}\)-innovations as follows: corr * \(e_{1}\) + sqrt(\(1-\text{ corr}^{2}\)) * \(e_{2}\). This is the set of randomly generated quantity innovations.
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Beisland, L.A., Frestad, D. How fair-value accounting can influence firm hedging. Rev Deriv Res 16, 193–217 (2013). https://doi.org/10.1007/s11147-012-9084-y
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DOI: https://doi.org/10.1007/s11147-012-9084-y
Keywords
- Cash-flow hedging
- Earnings hedging
- Earnings volatility
- Unhedgeable risk
- Hedgeable risk
- Fair value accounting