The productivity growth of euro area banks

Journal of Productivity Analysis - We study the performance of the banking system in the Eurozone over the period 2006–2017 as measured by total factor productivity growth (TFPG) and its...     

Approximation of aggregate and extremal losses within the very heavy tails framework

The loss distribution approach is one of the three advanced measurement approaches to the Pillar I modeling proposed by Basel II in 2001. In this paper, one possible approximation of the aggregate and maximum loss distribution in the extremely low frequency/high severity case is given, i.e. the case of infinite mean of the loss sizes and loss inter-arrival times. In this study, independent but not identically distributed losses are considered. The minimum loss amount is considered increasing over time. A Monte Carlo simulation algorithm is presented and several quantiles are estimated. The same approximation is used for modeling the maximum and aggregate worldwide economy losses caused by very rare and very extreme events such as 9/11, the Russian rouble crisis, and the U.S. subprime mortgage crisis. The model parameters are fit on a data sample of operational losses. The respective aggregate and extremal loss quantiles are calculated.     

Accept–reject Metropolis–Hastings sampling and marginal likelihood estimation

We describe a method for estimating the marginal likelihood, based on Chib (1995) and C hib and Jeliazkov (2001) , when simulation from the posterior distribution of the model parameters is by the accept–reject Metropolis–Hastings (ARMH) algorithm. The method is developed for one-block and multiple-block ARMH algorithms and does not require the (typically) unknown normalizing constant of the proposal density. The problem of calculating the numerical standard error of the estimates is also considered and a procedure based on batch means is developed. Two examples, dealing with a multinomial logit model and a Gaussian regression model with non-conjugate priors, are provided to illustrate the efficiency and applicability of the method.     

THE DECISIONS OF THE SHADOW MONETARY POLICY COMMITTEE AND MONETARY POLICY COMMITTEE SINCE 2002

We analyse the decisions of the Monetary Policy Committee (MPC) and the recommendations of the Shadow Monetary Policy Committee (SMPC) over the period 2002–2011. We find that the SMPC policy recommendations have to a large extent agreed with the policy actions of the MPC on interest rates. We offer some suggestions as to how the recommendations of the SMPC could be enhanced.     

True and fair in the Czech Republic: a note on local perceptions

With the collapse of communism in Czechoslovakia’, and the subsequent desire of Czechoslovakia to join the European Union, in common with other countries in Central Europe, Czechoslovakia utilized the Fourth Directive as a ‘toolkit’ in designing part of its new accounting legislation. In incorporating the Fourth Directive, it has also included the requirement for financial statements to show a ‘true and fair’ view. Given the confusion over the exact meaning of ‘true and fair’ it is interesting to study how ‘true and fair’ has been introduced into the Czech Republic, and what it seems to signify for those who implemented it and for those who are preparing and using financial statements. Our initial findings indicate that ‘true and fair’ varies in its significance for the groups of individuals involved in preparing and using financial statements and that it may have particular significance for some groups of accountants who wish to secure specific advantage within the Czech economy.With the collapse of communism in Czechoslovakia’, and the subsequent desire of Czechoslovakia to join the European Union, in common with other countries in Central Europe, Czechoslovakia utilized the Fourth Directive as a ‘toolkit’ in designing part of its new accounting legislation. In incorporating the Fourth Directive, it has also included the requirement for financial statements to show a ‘true and fair’ view. Given the confusion over the exact meaning of ‘true and fair’ it is interesting to study how ‘true and fair’ has been introduced into the Czech Republic, and what it seems to signify for those who implemented it and for those who are preparing and using financial statements. Our initial findings indicate that ‘true and fair’ varies in its significance for the groups of individuals involved in preparing and using financial statements and that it may have particular significance for some groups of accountants who wish to secure specific advantage within the Czech economy.With the collapse of communism in Czechoslovakia’, and the subsequent desire of Czechoslovakia to join the European Union, in common with other countries in Central Europe, Czechoslovakia utilized the Fourth Directive as a ‘toolkit’ in designing part of its new accounting legislation. In incorporating the Fourth Directive, it has also included the requirement for financial statements to show a ‘true and fair’ view. Given the confusion over the exact meaning of ‘true and fair’ it is interesting to study how ‘true and fair’ has been introduced into the Czech Republic, and what it seems to signify for those who implemented it and for those who are preparing and using financial statements. Our initial findings indicate that ‘true and fair’ varies in its significance for the groups of individuals involved in preparing and using financial statements and that it may have particular significance for some groups of accountants who wish to secure specific advantage within the Czech economy.With the collapse of communism in Czechoslovakia’, and the subsequent desire of Czechoslovakia to join the European Union, in common with other countries in Central Europe, Czechoslovakia utilized the Fourth Directive as a ‘toolkit’ in designing part of its new accounting legislation. In incorporating the Fourth Directive, it has also included the requirement for financial statements to show a ‘true and fair’ view. Given the confusion over the exact meaning of ‘true and fair’ it is interesting to study how ‘true and fair’ has been introduced into the Czech Republic, and what it seems to signify for those who implemented it and for those who are preparing and using financial statements. Our initial findings indicate that ‘true and fair’ varies in its significance for the groups of individuals involved in preparing and using financial statements and that it may have particular significance for some groups of accountants who wish to secure specific advantage within the Czech economy.     

一种转型理论

在这篇短评中,我将对孙立平富有启发性的文章,“社会转型：发展社会学的新议题”,做些补充而不是批评。我对孙的文章大都同意,我不想详细讨论我们之间多数是在术语使用上的分歧,而想强调我们在分析上的共同点。     

A Political Economy Application of the “Tragedy of the Anticommons”: The Greek Government Debt Crisis

The tragedy of the anticommons unfolds when separate social agents—be they private owners of a property who intend to use the property for their own economic benefit or political actors who pursue their political objectives—do not hold effective rights to use their economic or political power for their own purposes without consent of the other players of the economic or political game. I shall discuss the Greek government debt crisis and the Eurozone countries’ policies toward Greece within the analytical framework of the tragedy of the anticommons in this paper. I do not intend to dig deep into the structure and long-term trends of public and private finances in Greece. I shall only show that the successive bail-out programs of the Eurozone countries were doomed to fail because of these countries’ competitive and non-cooperative approach to the Greek financial problems. I shall also show that a coordinating agency, say the IMF, can foster the coordinated outcome only under strict informational conditions.     

Trade Liberalization and Heterogeneous Technology Investments

We propose a trade model where heterogeneous firms decide on a productivity‐enhancing technology investment. The model analyzes the impact of multilateral trade liberalization on firm‐ and industry‐level productivity. Freer trade increases the incentives to invest in technology by raising export profits. It also dampens these incentives, however, as profits stemming from domestic sales are reduced. Only exporters benefit from the former positive effect. The shape of the distribution of efficiency draws, the level of trade costs and the technology intensity of the industry are key elements removing the ambiguities regarding the net impact of trade liberalization.     

Consumption Externalities,Coordination, and Advertising*

The aim of this article is to demonstrate that advertising can have an important function in markets with consumption externalities apart from its persuasive and informative roles. We show that advertising may function as a device to coordinate consumer expectations of the purchasing decisions of other consumers in markets with consumption externalities. The implications of advertising as a coordinating device are examined in the pricing and advertising decisions of firms interacting strategically. Although, at times, the one‐period advertising expense can exceed the one‐period monopoly profit, in equilibrium, consumers will pay a premium for the more heavily advertised brand.     

On the stability of the constant relative risk aversion (CRRA) utility under high degrees of uncertainty

Growth models under uncertainty and constant relative risk aversion (CRRA) utility are fragile in explaining consumers’ choice, as equilibrium consumption is dependent on distributional assumptions. We show that, under semi-nonparametric distributions, general equilibrium models are stable, as the existence of expected utility is guaranteed.