Juste valeur » et « prix de modèle »: une comparaison internationale de la structure des portefeuilles de trading et du ratio « rentabilité

Laurent Clerc and Didier Marteau

Revue d'économie financière, 2014, vol. N° 115, issue 3, 305-322

Abstract: At the onset of the financial crisis in 2007, ?fair value? accounting came under fire for its pro-cyclical effects. Seven years on, fair value remains the sole method of accounting valuation of banks? trading books. One concern, which is relevant to regulations aimed at preventing systemic risk, is based on the observation that accounting valuation of trading portfolios at ?market price? is in fact minimal compared to ?model price? valuation. In this paper, we assess the distribution of the valuation of trading portfolios, between ?mark-to-market? and ?mark-to-model?, at the international level. Then, we calculate a measure of return on equity (ROE) on trading activities by comparing the gross income to the amount of regulatory capital based on ?value at risk? (VaR) and find that this ROE is not only abnormally high, but has also generally remained stable since the onset of the crisis. In addition, we establish that returns on banks? trading activities are positively and significantly correlated to the share of assets subject to mark-to-model in the total portfolio, and particularly the share of ?Level 3? assets. Classification JEL: G15, G21, G28, M48.

JEL-codes: G15 G21 G28 M48 (search for similar items in EconPapers)
Date: 2014
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