Abstract: We evaluate the effectiveness of portfolio mandates on equilibrium capital allocation. We show that the impact of mandates crucially depends on firms' demand elasticity of capital. In a production economy with constant returns to scale, firms' demand for capital is infinitely elastic, and mandates can significantly impact the allocation of capital across sectors despite having a negligible impact on the cost of capital. This is in sharp contrast to an endowment economy where inelastic demand for capital implies equilibrium price reactions to mandates, which significantly reduce their effectiveness. Within a canonical real-business-cycle model calibrated to match key asset-pricing and macroeconomic moments, we estimate that a significant portion of the mandate remains effective in shaping equilibrium capital allocation, even when there is little disparity in the cost of capital across sectors. Our analysis challenges the common practice of judging the effectiveness of portfolio mandates by their impact on firms' cost of capital.
Abstract: Can environmentally-minded investors impact the cost of capital of green firms even when they invest through financial intermediaries? To answer this and related questions, I build an equilibrium intermediary asset pricing model with three investors, two risky assets, and a riskless bond. Specifically, two heterogeneous retail investors invest via a financial intermediary who decides on the portfolio allocation that she offers between a green and a brown equity. Both retail investors and the financial intermediary can tilt towards the green asset, beyond pure financial considerations. Perhaps surprisingly, the green retail investor can have substantial impact on the pricing of green assets, even when she invests via an intermediary who does not tilt: a sizable green premium --that is, a lower cost of capital-- can emerge on the equity of the green firm. This good news comes with important qualifications, however: the green retail investor has to take large leveraged positions in the portfolio offered by the intermediary, her strategy must be inherently state-dependent, and economic conditions or the specification of preferences can overturn or limit the result. When the financial intermediary decides (or is made) to tilt instead, the impact on the green premium is substantially larger, although it is largest when preference are aligned with retail investors. I also study what happens when the green retail investor does not know the weights in the portfolio offered by the intermediary, the potential impact of greenwashing, and the effect of portfolio constraints. Taken together, these findings highlight the central role that financial intermediaries can play in channeling (or not) financing towards the green transition.
Abstract: We examine the economic effects of mandates to consume renewable and clean energy. U.S. state governments that adopt Renewable Portfolio Standards (RPS) see an increase in bond yields and a decrease in credit ratings. The higher cost of funding is predicted by the rise in electricity prices driven by RPS. However, we observe muted and often opposite results when states introduce Clean Energy Standards (CES) that include energy generated by a more diverse set of technologies. These results are robust in primary and secondary market transactions and extend to local municipalities and school district funding. Overall, our results highlight the costs to taxpayers of renewable and clean energy commitments.
