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A Market Risk Approach to Liquidity Risk and Financial Contagion

According to traditional literature, liquidity risk in individual banks can turn into a system-wide financial crisis when either interbank credit exposures or bank runs are present. This paper shows that this phenomenon can also arise when individual liquidity risk trans- forms into system-wide...

A Multi-Layer Network Of the Sovereign Securities Market

We study the network of Colombian sovereign securities settlements. With data from the settlement market infrastructure we study financial institutions’ transactions from three different trading and registering individual networks that we combine into a multi-layer network.

Financial Stability and Interacting Networks of Financial Institutions and Market Infrastructures

An interacting network coupling financial institutions’ multiplex (i.e. multi-layer) and financial market infrastructures’ single-layer networks gives an accurate picture of a financial system’s true connective architecture. We examine and compare the main properties of Colombian multiplex and...

Identifying central bank liquidity super-spreaders in interbank funds networks

Evidence suggests that the Colombian interbank funds market is an inhomogeneous and hierarchical network in which a few financial institutions fulfill the role of “super-spreaders” of central bank liquidity among market participants. Results concur with evidence from other interbank markets and...

Liquidity and Counterparty Risks Tradeoff in Money Market Networks

We examine how liquidity is exchanged in different types of Colombian money market networks (i.e. secured, unsecured, and central bank’s repo networks). Our examination first measures and analyzes the centralization of money market networks. Afterwards, based on a simple network optimization...

Modular scale-free architecture of Colombian financial networks: Evidence and challenges with financial stability in view

Scale-free (inhomogeneous) connective structures with modular (highly clustered) hierarchies are ubiquitous in real–world networks. Evidence from the main Colombian payment and settlement systems verifies that local financial networks have self-organized into a modular scale-free architecture...

Short-Term Liquidity Contagion in the Interbank Market

We implement a modified version of DebtRank, a measure of systemic impact inspired in feedback centrality, to recursively measure the contagion effects caused by the default of a selected financial institution. In our case contagion is a liquidity issue, measured as the decrease in financial...

The Risk-Taking Channel and Monetary Transmission Mechanism in Colombia

The recent financial crisis has brought to the forefront the need of a better understanding of the transmission mechanisms of monetary policy. The main step forward in this direction has drawn on work aimed at stressing the role of the financial sector in this transmission. Particular emphasis...

The Risk-Taking Channel and Monetary Transmission Mechanism in Colombia

The recent financial crisis has brought to the forefront the need for a better understanding of the transmission mechanisms of monetary policy.

The Risk-taking Channel in Colombia Revisited

Levels of interest rates below historical norms may have enhanced financial instability in both developed and in developing economies during the 2000´s. The risk-taking channel of monetary transmission policy is a recent theory that explains the interaction between risk perceptions of the...

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