Prosper Lamothe

Dr. Prosper Lamothe

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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 July 2020 in Mathematics
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Journal Article
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PLProsper Lamothe
Prosper Lamothe
DADavid Alaminos Aguilera
David Alaminos Aguilera
PLProsper Lamothe López
Prosper Lamothe López
MGManuel Angel Fernández Gámez
Manuel Angel Fernández Gámez
A precise prediction of Bitcoin price is an important aspect of digital financial markets because it improves the valuation of an asset belonging to a decentralized control market. Numerous studies have studied the accuracy of models from a set of factors. Hence, previous literature shows how models for the prediction of Bitcoin suffer from poor performance capacity and, therefore, more progress is needed on predictive models, and they do not select the most significant variables. This paper presents a comparison of deep learning methodologies for forecasting Bitcoin price and, therefore, a new prediction model with the ability to estimate accurately. A sample of 29 initial factors was used, which has made possible the application of explanatory factors of different aspects related to the formation of the price of Bitcoin. To the sample under study, different methods have been applied to achieve a robust model, namely, deep recurrent convolutional neural networks, which have shown the importance of transaction costs and difficulty in Bitcoin price, among others. Our results have a great potential impact on the adequacy of asset pricing against the uncertainties derived from digital currencies, providing tools that help to achieve stability in cryptocurrency markets. Our models offer high and stable success results for a future prediction horizon, something useful for asset valuation of cryptocurrencies like Bitcoin.

7 March 2023 in Small Business International Review
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Leslie Rodriguez-ValenciaLeslie Rodriguez-Valencia
Leslie Rodriguez-Valencia
PLProsper Lamothe
Prosper Lamothe
Various corporate governance theories indicate that governance in small and medium-sized enterprises (SMEs) differs to that of larger corporations due to the ownership-management function within the organizational structure. This article provides empirical evidence of enhanced firm value in a sample of listed SMEs resulting from certain corporate governance mechanisms related to managerial and ownership concentration. The empirical analysis conducted in this paper is based on a panel data set consisting of 108 small and medium-sized public firms on the Spanish alternative stock exchange over a time frame of five years (2015-2019). The results suggest that CEO duality, the controlling shareholders, and the second largest shareholders all improve firm value. Conversely, the ratio of independent directors has a negative impact on firm value. These findings are robust to alternative model specifications such as dynamic panel estimators (Generalized Method of Moments -GMM-) and instrumental variable methods. Overall, we show that the governance configuration of listed SMEs can mitigate several of the central issues, such as agency problems, that large corporations face.

15 December 2021 in Revista Perspectiva Empresarial
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FTFrancisco Javier Vásquez Tejos
Francisco Javier Vásquez Tejos
PLProsper Lamothe
Prosper Lamothe
HLHernan Pape Larre
Hernan Pape Larre
Objective. To explore the relationship between liquidity risk and the capital structure of Latin American companies. Methodology. With a sample of 135 companies (Brazil, Chile and Mexico), panel data were used to analyze various models that considered, among other variables, six liquidity risk indices, two of which included a new factor: the free-float. The study period covers from 2010 to 2019. Results. The level of indebtedness and capital risk in Latin America companies present a mixed relationship (direct and inverse). Conclusions. Latin American companies have their own characteristics for decision-makingabout capital structure.

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ALAngela C. De Luna López
Angela C. De Luna López
PLProsper Lamothe-López
Prosper Lamothe-López
WLWalter Luna
Walter Luna
PLProsper Lamothe
Prosper Lamothe
A significant share of many commercial banks’ portfolios consists of residential mortgage loans provided to individuals and families. This paper examines the default and rational prepayment risk of single-borrower (residential) mortgage loans based on an option pricing model that captures the skewness and kurtosis of the house prices returns’ distribution via the shifted lognormal distribution. Equilibrium option-adjusted credit spreads are obtained from the implementation of the model under plausible values of the relevant parameters. The methodology involves numerical experiments, using a shifted binomial tree model by Haathela and Camara and Chung, to evaluate the effects of the loan-to-value (LTV) ratio, asset volatility, interest rates, and recovery costs on mortgage valuation. Findings indicate prepayment risk significantly influences loan value, as it limits upside potential, while LTV and volatility directly impact default risk. The shifting parameter (θ) in the asset distribution proves essential for accurate risk assessment. Conclusions emphasize the need for mortgage underwriting to consider specific asset characteristics, optimal loan structures, and prevailing risk-free rates to avoid underestimating risk. This model can aid in the more robust pricing and management of mortgage portfolios, especially relevant in regions with substantial mortgage-backed exposure, such as the European banking system.

29 May 2026 in Commodities
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Journal Article
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PLProsper Lamothe
Prosper Lamothe
FGFernando Gallardo
Fernando Gallardo
Hamidreza AbshenasanHamidreza Abshenasan
Hamidreza Abshenasan
Natural gas markets exhibit violent, non-linear volatility regimes. The 2022 energy crisis introduced persistent supply shocks and cross-Atlantic spillover effects. Traditional valuation models assume single-regime environments; consequently, they systematically misprice storage assets during extreme stress. We propose a valuation framework tailored to these specific market volatilities. By integrating a hidden Markov model (HMM) and Diebold–Yilmaz (DY) spillover indices into a stochastic dynamic programming (SDP) engine, the framework isolates the persistence of stressed market conditions. The model captures structural arbitrage opportunities. We demonstrate a 197 percent net present value (NPV) premium over conventional benchmarks using synthetic data. The optimal policy expands inventory holding periods during high spillover intensity. The algorithm executes decisions with sub-millisecond latency. This approach provides a computationally viable tool for high-frequency risk management.

4 April 2024
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Book Chapter
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PLProsper Lamothe-López
Prosper Lamothe-López
PLProsper Lamothe
Prosper Lamothe
Leslie Rodriguez-ValenciaLeslie Rodriguez-Valencia
Leslie Rodriguez-Valencia
Cryptocurrencies have become an attractive asset class for all types of investors. A relevant question is whether their inclusion in portfolios improves their risk-return output. In this chapter, we conduct an empirical study of the effect of the inclusion of Bitcoin and Ethereum in the portfolio of a European investor. Additionally, we analyze the results of previous studies on this question under other assumptions. The empirical data are overwhelming regarding the attractiveness of Bitcoin and by extension other cryptocurrencies as an asset class. The important question is whether this appeal is temporary and will eventually disappear so investors do not have to worry about this new asset class. In the chapter we discuss this issue.