Posts Tagged ‘activos


Paper: Diversificación, rebalanceo como soluciones…

Diversification Return, Portfolio Rebalancing, and the Commodity Return Puzzle

Diversification return is an incremental return earned by a rebalanced portfolio of assets. The diversification return of a rebalanced portfolio is often incorrectly ascribed to a reduction in variance. We argue that the underlying source of the diversification return is the rebalancing, which forces the investor to sell assets that have appreciated in relative value and buy assets that have declined in relative value, as measured by their weights in the portfolio. In contrast, the incremental return of a buy-and-hold portfolio is driven by the fact that the assets that perform the best become a greater fraction of the portfolio. We use these results to resolve two puzzles associated with the Gorton and Rouwenhorst index of commodity futures, and thereby obtain a clear understanding of the source of the return of that index. Diversification return can be a significant source of return for any rebalanced portfolio of volatile assets.

Link al Paper


Tabla du Jour: Retornos al 31 de marzo



Finanzas 101: burbujas

Vox tiene un post sobre el origen y las implicaciones de las burbujas en el precio de ciertos activos. Parte desde la clásica pregunta: ¿Que es una burbuja?; para terminar enumerando los avances en los modelos que buscan explicarlas.


Despite the recurrent nature of bubbles and their macroeconomic implications, however, we still lack a stylised model to answer the basic questions:

  • What is the origin of bubbly episodes?
  • Why are they unpredictable?
  • How do bubbles affect consumption, the capital stock, and output?




Frase del Día: Cuando todo sube…

Lesson #1: Investors don’t mind a correlation of one across asset classes when everything goes up.”

(Fuente: EconomicPic)


Infograma du Jour: Bancos Top 50

(Fuente: The Banker, via Credit Writedowns)


Paper: El efecto de los activos complejos

Trading Complex Assets

We perform an experimental study of complexity to assess its effect on trading behavior, price volatility, liquidity, and trade efficiency. Subjects were asked to deduce the value of a particular asset from information they were given about the composition and price of several portfolios. Following that, subjects traded with each other anonymously in a well-defined, simple bargaining process. Portfolio problems ranged from requiring simple analysis to more complicated computation. Complexity altered subjects’ bidding strategies, decreased liquidity, increased price volatility, and decreased trade efficiency. Female subjects were affected more by complexity (e.g., lower trade frequency), although they achieved higher payoffs in the complex treatment. Our analysis suggests that complexity may be a driver of volatility and liquidity in financial markets and provides novel testable empirical predictions.

Link al Paper


Paper: apalancamiento y Burbujas

Leverage and Asset Bubbles: Averting Armageddon with Chapter 11?


An iconic model with high leverage and overvalued collateral assets is used to illustrate the amplification mechanism driving asset prices to ‘overshoot’ equilibrium when an asset bubble bursts—threatening widespread insolvency and what Richard Koo calls a ‘balance sheet recession’. Besides interest rates cuts, asset purchases and capital restructuring are key to crisis resolution. The usual bankruptcy procedures for doing this fail to internalise the price effects of asset ‘fire-sales’ to pay down debts, however. We discuss how official intervention in the form of ‘super’ Chapter 11 actions can help prevent asset price correction causing widespread economic disruption.

Linal Paper


Paper: Red financiera global

The geographical composition of national external balance sheets:1980–2005
This paper constructs a data set on stocks of bilateral external assets and liabilities for a group of 18 countries, including developed and emerging economies. The data set covers the years 1980 to 2005 and distinguishes between four asset classes: foreign direct investment, portfolio equity, debt, and foreign exchange reserves. A number of stylised facts emerge from it. There has been a remarkable increase in interconnectivity over the past two decades. Financial links have become larger and more frequent and countries have become more open. The global financial network is centred around a small number of nodes, which have many and large links. In addition, the network exhibits ‘small-world’ properties, such as high clustering and low average path length. The combination of high interconnectivity, a small number of hubs, and ‘small-world’ properties makes for a robust-yet-fragile system, in which disturbances to the key hubs would be rapidly and widely transmitted. The global financial network is centred around the United States and the United Kingdom, which have large links and are connected to most other countries. This contrasts with the global trade network, which is arranged in three clusters: a European cluster (centred on Germany), an Asian cluster (centred on China), and an American cluster (centred on the United States).
Link al Paper

Fun & Finance


Fun & Finance Rollover

"It is hard to be finite upon an infinite subject, and all subjects are infinite." Herman Melville

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July 2020



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