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Author:Siedlarek, Jan-Peter 

Journal Article
Asset Commonality in US Banks and Financial Stability

One potential threat to a stable financial system is the phenomenon of contagion, where a risk that is ordinarily small becomes a problem because of the way it spreads to other institutions. Researchers have investigated multiple channels through which contagion might occur. We look at two?banks borrowing from each other and banks holding similar types of assets?and argue that the latter is a potential source of systemic risk. We review recent data on asset concentrations and capitalization levels of the largest US banks and conclude that the overall risk from this particular contagion ...
Economic Commentary , Issue January

Working Paper
Community Leaders and the Preservation of Cultural Traits

We explain persistent differences in cultural traits of immigrant groups with the presence of community leaders. Leaders influence the cultural traits of their community, which have an impact on the group?s earnings. They determine whether a community will be more assimilated and wealthier or less assimilated and poorer. With a leader, cultural integration remains incomplete. The leader chooses more distinctive cultural traits in high-productivity environments and if the community is more connected. Lump-sum transfers to immigrants can hinder cultural integration. These findings are in line ...
Working Papers (Old Series) , Paper 1517

Working Paper
The Impact of Merger Legislation on Bank Mergers

We find that stricter merger control legislation increases abnormal announcement returns of targets in bank mergers by 7 percentage points. Analyzing potential explanations for this result, we document an increase in the pre-merger profitability of targets, a decrease in the size of acquirers, and a decreasing share of transactions in which banks are acquired by other banks. Other merger properties, including the size and risk profile of targets, the geographic overlap of merging banks, and the stock market response of rivals appear unaffected. The evidence suggests that the strengthening of ...
Working Papers (Old Series) , Paper 1614

Working Paper
Intermediation in Networks

I study intermediation in networked markets using a stochastic model of multilateral bargaining in which players compete on different routes through the network. I characterize stationary equilibrium payoffs as the fixed point of a set of intuitive value function equations and study efficiency and the impact of network structure on payoffs. There is never too little trade but there may be an inefficiency through too much trade in states where delay would be efficient. With homogeneous trade surplus the payoffs for players that are not essential to a trade opportunity go to zero as trade ...
Working Papers (Old Series) , Paper 1518

Working Paper
Convergence of Cultural Traits with Time-Varying Self-Confidence in the Panebianco (2014) Model--A Corrigendum

We highlight that convergence in repeated averaging models commonly used to study cultural traits or opinion dynamics is not equivalent to convergence in Markov chain settings if transition matrices are time-varying. We then establish a new proof for the convergence of cultural traits in the model of Panebianco (2014) correcting the existing proof. The new proof provides novel insights on the long-run outcomes for inessential individuals. We close with a discussion of conditions for convergence in repeated averaging models with time-varying transition matrices.
Working Papers (Old Series) , Paper 1720

Working Paper
The Impact of Merger Legislation on Bank Mergers

We find that stricter merger control legislation increases abnormal announcement returns of targets in bank mergers by 7 percentage points. Analyzing potential explanations for this result, we document an increase in the pre-merger profitability of targets, a decrease in the size of acquirers, and a decreasing share of transactions in which banks are acquired by other banks. Other merger properties, including the size and risk profile of targets, the geographic overlap of merging banks, and the stock market response of rivals appear unaffected. The evidence suggests that the strengthening of ...
Working Papers , Paper 201614R

Working Paper
The Impact of Stricter Merger Control on Bank Mergers and Acquisitions. Too-Big-To-Fail and Competition

The effect of regulations on the banking sector is a key question for financial intermediation. This paper provides evidence that merger control regulation, although not directly targeted at the banking sector, has substantial economic effects on bank mergers. Based on an extensive sample of European countries, we show that target announcement premia increased by up to 16 percentage points for mergers involving control shifts after changes in merger legislation, consistent with a market expectation of increased profitability. These effects go hand-in-hand with a reduction in the propensity ...
Working Papers , Paper 201614R2

Working Paper
Making Friends Meet: Network Formation with Introductions

High levels of clustering—the tendency for two nodes in a network to share a neighbor—are ubiquitous in economic and social networks across different applications. In addition, many real-world networks show high payoffs for nodes that connect otherwise separate network regions, representing rewards for filling “structural holes” in the sense of Burt (1992) and keeping distances in networks short. This paper proposes a parsimonious model of network formation with introductions and intermediation rents that can explain both these features. Introductions make it cheaper to create ...
Working Papers , Paper 202001

Journal Article
Merger Control in the Banking Sector

This Commentary discusses the implications of merger control policy on merger activity in the banking sector, drawing on an analysis of the European banking sector during a period in which stricter merger policies were being introduced. It identifies several changes to the bank mergers taking place after the introduction of the stricter policies that are consistent with higher expected returns for shareholders and more procompetitive transactions. The evidence suggests that the new merger policy was successful in preventing mergers that are excessively anticompetitive, while it also led to ...
Economic Commentary , Issue August

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