This article explores the complex dynamics of financial innovation in early modern times, challenging linear models of temporal and spatial divisions that tend to shape our understanding of the evolution of financial systems. It supports the idea that innovation should be viewed as a non-linear and contextual process, involving diverse stakeholders and characterised by interactions and unexpected occurrences. The study focuses on the dissemination and trajectories of financial innovations, specifically the bill of exchange and its variation, the ricorsa, as well as the transferability and negotiability of commercial paper. It does so by investigating the interactions and exchanges between merchants and bankers from diverse backgrounds during the sixteenth-century Lyon fairs, using the archival records of one of the first Italian banks in Lyon (Salviati). The study reveals the mutual influence and acculturation among these agents and challenges the compartmentalisation of financial expertise. Through an analysis of transactions recorded in the Salviati bank's ledgers, the article highlights previously unknown uses of commercial paper by Southern merchant communities and discusses the factors that may have hindered the full-scale development of endorsement and discount in the Lyon trading networks, despite their potential benefits. The results provide insights into the intricate nature of financial innovation and the influence of structural and cultural factors on its development.

In this paper I investigate the impact of numerological superstitions and discounts’ effect on the buyers’ behavior in the apartment market using actual sales data. Based on the dataset from Moscow primary real estate market, which includes 40 buildings, we test the apartments buyers’ demand on lucky 7th floor and unlucky 13th floor in comparison to neighboring floors and its response to developers’ discount policy for the apartments on the 13th floor. Results of the random-effects model for the preference towards 7th floor show that that “good luck” effect is present at the 90% confidence interval. Results of the mixed-effects model for the preference towards the 13th floor’s apartments show that in case of discount moderation, the “bad luck” effect of the 13th floor is mitigated, while in case of “no discount” buildings we find the clear negative effect of the 13th floor.

The effect of stochastic factors on soil carbon makes the quantity of carbon generated under a sequestration project uncertain. Hence, the quantity of sequestered carbon may need to be discounted to avoid liability from shortfalls. We present a potentially applicable uncertainty discount and discuss difficulties that might arise in empirical use. We insist that the variance in historical crop yields across geographical areas is used to derive a proxy variance for forming an uncertainty discount for carbon projects. Application of our approach suggests that project level uncertainty discounts would be 15-20% for the East Texas region.

We consider a generalization of the house-selling problem to selling k houses. Let the offers, X1, X2, · ··, be independent, identically distributed k-dimensional random vectors having a known distribution with finite second moments. The decision maker is to choose simultaneously k stopping rules, N1, · ··, Nk, one for each component. The payoff is the sum over j of the jth component of minus a constant cost per observation until all stopping rules have stopped. Simple descriptions of the optimal rules are found. Extension is made to problems with recall of past offers and to problems with a discount.