Unité mixte de recherche 7235

Equity Prices and Fundamentals: a DDM-APT Mixed Approach

Fredj Jawadi, Georges Prat

[en]This paper focuses on the linkages between equity prices and fundamentals for 27 individual shares from the French stock price index (CAC40). To assess fundamental value, the traditional Dividend Discount Model (DDM) equities’ valuation principle is coupled with the Portfolio Choice Theory based on the Arbitrage Pricing Theory (APT). This yields a general equity valuation relationship for which the APT determines the long-term risk premium included in the DDM. Interestingly, restrictions are less significant than in the usual approaches since the number of risk premium factors is not limited a priori by the theory. Accordingly, our empirical results point to two major findings. On the one hand, while results in the literature based on the DDM showed that fundamental value dynamics are very smooth with respect to stock price indices, our DDM-APT model reproduces both trends and major share price fluctuations. On the other hand, a simple linear Error Correction Model (ECM) highlighted a mean-reversion process of equity prices towards their fundamental values.[/en]

AGENDA

lundi 27 mars 2023

Professeurs invités

Axel Gautier

jeudi 30 mars 2023

Groupe de travail « Intelligence artificielle »

Paola Tubaro (CREST)

Salle : G614B

Artificial intelligence, labour transformations, and inconspicuous inequalities: women’s work on digital ‘micro-tasking’ platforms

jeudi 30 mars 2023

Doctorants

Morel Tien

Migration et synchronisation des cycles

lundi 3 avril 2023

Law, Institutions and Economics in Nanterre (LIEN)

Stefania Marcassa (CY Cergy)

En salle 614 et en distanciel

TBA

mardi 4 avril 2023

Recherche et Economie et Socioéconomie Politique, des Institutions et des Régulations (RESPIR)

Franck Bessis (Triangle et Université Lyon 2)

Une ethnographie de l’expertise économique d’Etat

mardi 4 avril 2023

Développement Durable Environnement et Energie (DDEE)

Etienne Lorang (Tilburg University)

Salle 614B de 16h00 – 17h00)

A CGE Integrating Material Stocks and Flows

jeudi 6 avril 2023

Lunch

Axel Gautier (Université de Liège)

TBA

jeudi 6 avril 2023

Groupe de travail « Intelligence artificielle »

Renaud Aioutz-Lefebvre (OpenStudio)

Recherche de synergies productives et synergies inter-entreprises

Inscription aux Newsletters