We have developed a new approach to the computation of third-order spectroscopic signals of molecular rings, by incorporating the Davydov soliton theory into the nonlinear response function formalism. The Davydov D1 and D Ansätze have been employed to treat the interactions between the excitons and the primary phonons, allowing for a full description of arbitrary exciton-phonon coupling strengths. As an illustration, we have simulated a series of optical 2D spectra for two models of molecular rings.

We examine whether climate change news risk is priced in corporate bonds. We estimate bond covariance with a climate change news index and find that bonds with a higher climate change news beta earn lower future returns, consistent with the asset pricing implications of demand for bonds with high potential to hedge against climate risk. Moreover, when investors are concerned about climate risk, they are willing to pay higher prices for bonds issued by firms with better environmental performance. Our findings suggest that corporate policies aimed at improving environmental performance pay off when the market is concerned about climate change risk.

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This paper compares the ability of three‐factor and five‐factor asset pricing models to explain the apparent profitability of a broad selection of anomalies in Australian equity returns. Rather than examining the fit of each model to common test portfolios, our focus is on the spread return to long–short trading strategies designed around so‐called anomalies. After documenting significant spread returns to 16 anomalies (including several not previously studied in Australia), the empirical analysis provides cautious support that the recently‐proposed investment and profitability factors have a role to play. The number of anomalies that remains after risk adjustment decreases under the five‐factor model. Further, while the magnitude of reduction in alpha is modest, our testing shows that it is statistically significant in many cases. However, both three‐factor and five‐factor models repeatedly fail the Gibbons, Ross, and Shanken's (1989) (GRS) test, suggesting that the quest for a better asset pricing model is not yet complete.