The regulated firm's choice of capital structure is affected by counte
rvailing incentives: the firm wishes to signal high value to capital m
arkets to boost its market value while also signalling high cost to re
gulators to induce rate increases, When the firm's investment is large
, countervailing incentives lead both high- and low-cost firms to choo
se the same capital structure in equilibrium, thus decoupling capital
structure from private information, When investment is small or medium
-sized, the model may admit separating equilibria in which high-cost f
irms issue greater equity and low-cost firms rely more on debt financi
ng.y