Simple calvo economies with heterogeneous pricing

A motivação para este trabalho vem dos principais resultados de Carvalho e Schwartzman (2008), onde a heterogeneidade surge a partir de diferentes regras de ajuste de preço entre os setores. Os momentos setoriais da duração da rigidez nominal são su cientes para explicar certos efeitos monetários. Uma vez que concordamos que a heterogeneidade é relevante para o estudo da rigidez de preços, como poderíamos escrever um modelo com o menor número possível de setores, embora com um mínimo de heterogeneidade su ciente para produzir qualquer impacto monetário desejado, ou ainda, qualquer três momentos da duração? Para responder a esta questão, este artigo se restringe a estudar modelos com hazard-constante e considera que o efeito acumulado e a dinâmica de curto-prazo da política monetária são boas formas de se resumir grandes economias heterogêneas. Mostramos que dois setores são su cientes para resumir os efeitos acumulados de choques monetários, e economias com 3 setores são boas aproximações para a dinâmica destes efeitos. Exercícios numéricos para a dinâmica de curto prazo de uma economia com rigidez de informação mostram que aproximar 500 setores usando apenas 3 produz erros inferiores a 3%. Ou seja, se um choque monetário reduz o produto em 5%, a economia aproximada produzirá um impacto entre 4,85% e 5,15%. O mesmo vale para a dinâmica produzida por choques de nível de moeda em uma economia com rigidez de preços. Para choques na taxa de crescimento da moeda, a erro máximo por conta da aproximação é de 2,4%.

Imperfectly credible disinflation under endogenous time-ependent pricing

The real effects of an imperfectly credible disinflation depend critically on the extent of price rigidity. Therefore, the study of how policymakers’ credibility affects the outcome of an announced disinflation should not be dissociated from the analysis of the determinants of the frequency of price adjustments. In this paper we examine how credibility affects the outcome of a disinflation in a model with endogenous timedependent pricing rules. Both the initial degree of price ridigity, calculated optimally, and, more notably, the changes in contract length during disinflation play an important role in the explanation of the effects of imperfect credibility. We initially evaluate the costs of disinflation in a setup where credibility is exogenous, and then allow agents to use Bayes rule to update beliefs about the “type” of monetary authority that they face. In both cases, the interaction between the endogeneity of time-dependent rules and imperfect credibility increases the output costs of disinflation, but the pattern of the output path is more realistic in the case with learning.

Optimal-state-dependent rules, credibility, and inflationary inertia

This paper examines the output losses caused by disinflation and the role of credibility in a model where pricing mIes are optimal and individual prices are rigid. Individual nominal rigidity is modeled as resulting from menu costs. The interaction between optimal pricing mIes and credibility is essential in determining the inflationary inertia. A continued period of high inflation generates an asymmetric distribution of price deviations, with more prices that are substantially lower than their desired leveIs than prices that are substantially higher than the optimal ones. When disinflation is not credible, inflationary inertia is engendered by this asymmetry: idiosyncratic shocks trigger more upward than downward adjustments. A perfect1y credible disinflation causes an immediate change of pricing rules which, by rendering the price deviation distribution less asymmetric, practically annihilates inflationary inertia. An implication of our model is that stabilization may be sucessful even when credibility is low, provided that it is preceded by a mechanism of price alignment. We also develop an analytical framework for analyzing imperfect credibility cases.

Imperfectly credible disinflation under endogenous time-dependent pricing

The real effects of an imperfectly credible disinflation depend critically on the extent of price rigidity. Therefore, the study of how policymakers’ credibility affects the outcome of an announced disinflation should not be dissociated from the analysis of the determinants of the frequency of price adjustments. In this paper we examine how the policymaker’s credibility affects the outcome of an announced disinflation in a model with endogenous time-dependent pricing rules. Both the initial degree of price ridigity, calculated optimally, and, more notably, the changes in contract length during disinflation play an important role in the explanation of the effects of imperfect credibility. We initially evalute the costs of disinflation in a setup where credibility is exogenous, and then allow agents to update beliefs about the “type” of monetary authority that they face. We show that, in both cases, the interaction between the endogeneity of time-dependent rules and imperfect credibility increases the output costs of disinflation.

Patenting the invention: application, prosecution, interference proceedings, with rules and forms.

Bibliography: p. xiv.

Cost-based pricing in the NHS internal market : accounting choices and the achievement of economic efficiency

Since 1988, quasi-markets have been introduced into many areas of social policy in the UK, the NHS internal market is one example. Markets operate by price signals. The NHS Internal Market, if it is to operate efficiently, requires purchasers and providers to respond to price signals. The research hypothesis is - cost accounting methods can be developed to enable healthcare contracts to be priced on a cost-basis in a manner which will facilitate the achievement of economic efficiency in the NHS internal market. Surveys of hospitals in 1991 and 1994 established the cost methods adopted in deriving the prices for healthcare contracts in the first year of the market and three years on. An in-depth view of the costing for pricing process was gained through case studies. Hospitals had inadequate cost information on which to price healthcare contracts at the inception of the internal market: prices did not reflect the relative performance of healthcare providers sufficiently closely to enable the market's espoused efficiency aims to be achieved. Price variations were often due to differing costing approaches rather than efficiency. Furthermore, price comparisons were often meaningless because of inadequate definition of the services (products). In April 1993, the NHS Executive issued guidance on costing for contracting to all NHS providers in an attempt to improve the validity of price comparisons between alternative providers. The case studies and the 1994 survey show that although price comparison has improved, considerable problems remain. Consistency is not assured, and the problem of adequate product definition is still to be solved. Moreover, the case studies clearly highlight the mismatch of rigid, full-cost pricing rules with both the financial management considerations at local level and the emerging internal market(s). Incentives exist to cost-shift, and healthcare prices can easily be manipulated. In the search for a new health policy paradigm to replace traditional bureaucratic provision, cost-based pricing cannot be used to ensure a more efficient allocation of healthcare resources.

The taxation of multinational banks : alternative apportionment through a unitary taxation regime aligning with economic reality

The taxation of multinational banks currently is governed by the general principles of international tax. However, it is arguable that there are characteristics exclusive to multinational banks that may warrant the consideration of a separate taxing regime. This article argues that because of the unique nature of multinational banks, the traditional international tax rules governing jurisdiction to tax and allocation of income do not produce a result which is optimal, as it does not reflect economic reality. That is, the current system does not produce a result that accurately reflects the economic source of the income or the location of the economic activity. The suggested alternative is unitary taxation using global formulary apportionment. Formulary apportionment is considered as an alternative that reflects economic reality by recognising the unique nature of multinational banks and allocating the income to the location of the economic activity. The unique nature of multinational banking is recognised in the fact that formulary apportionment does not attempt to undertake a transactional division of a highly integrated multinational entity. Rather, it allocates income to the jurisdictions based on an economically justifiable formula. Starting from this recognition, the purpose of this article is to demonstrate that formulary apportionment is a theoretically superior (or optimal) model for the taxation of multinational banks. An optimal regime, for the purposes of this article, is considered to be one that distributes the taxing rights in an equitable manner between the relevant jurisdictions, while, simultaneously allowing decisions of the international banks to be tax neutral. In this sense, neutrality is viewed as an economic concept and equity is regarded as a legal concept. A neutral tax system is one in which tax rules do not affect economic choices about commercial activities. Neutrality will ideally be across jurisdictions as well as across traditional and non-traditional industries. The primary focus of this article is jurisdictional neutrality. A system that distributes taxing rights in an equitable manner between the relevant jurisdictions ensures that each country receives its fair share of tax revenue. Given the increase in multinational banking, jurisdictions should be concerned that they are receiving their fair share. Inter-nation equity is concerned with re-determining the proper division of the tax base among countries. Richard and Peggy Musgrave argue that sharing of the tax base by countries of source should be seen as a matter of inter-nation equity requiring international cooperation. The rights of the jurisdiction of residency will also be at issue. To this extent, while it is agreed that inter-nation equity is an essential attribute to an international tax regime, there is no universal agreement as to how to achieve it. The current system attempts to achieve such equity through a combined residency and source regime, with the transfer pricing rules used to apportion income between the relevant jurisdictions. However, this article suggests, that as an alternative to the current regime, equity would be achieved through formulary apportionment. Opposition to formulary apportionment is generally based on the argument that it is not a theoretically superior (or optimal) model because of the implementation difficulties. Yet these are two separate issues. As such, this article is divided into two core parts. The first part examines the theoretical soundness of the formulary apportionment model concluding that it is theoretically superior to the arm’s length pricing requirement of the traditional transfer pricing regime. The second part examines the practical implications of accepting formulary apportionment as an optimal model with a view to disclosing the issues that arise when a formulary apportionment regime is adopted. Prior to an analysis of the theoretical and practical application of formulary apportionment to multinational banks, the unique nature of these banks is considered. The article concludes that, while there are significant implementation, compliance, and enforcement issues to overcome, the unitary taxation model may be theoretically superior to the current arm’s length model which applies to multinational banks. This conclusion is based on the unitary taxation model providing greater alignment with the unique features of these banks.

The inherent international tax regime and its constraints on Australia's sovereignty

On 1 November 2011 the Minister for Financial Services and Superannuation, the Honourable Bill Shorten MP, announced that Australia would be undertaking a reform of the ‘transfer pricing rules in the income tax law and Australia’s future tax treaties to bring them into line with international best practice, improving the integrity and efficiency of the tax system.’ Mr Shorten stated that the reason for the reform was that ‘recent court decisions suggest our existing transfer pricing rules may be interpreted in a way that is out-of-kilter with international norms.’ Further, he stated that ‘the Government has asked the Treasury to review how the transfer pricing rules can be improved, including but not limited to how to be more in line with international best practice.’ He urged all interested parties to participate in this consultation process. On 16 March 2012, an Exposure Draft and accompanying Explanatory Memorandum outlining the proposed amendments to implement the first stage of the transfer pricing reforms were released. Within the proposed changes is the explicit embedding of the use of the OECD’s Model Tax Convention on Income and on Capital and Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations to help determine the arm’s length price. Does this mean that Australia engages in an international tax regime?

Australia's adoption of an international tax regime : to engage or not to engage?

On 1 November 2011 the Minister for Financial Services and Superannuation, the Honourable Bill Shorten MP, announced that Australia would be undertaking a reform of the ‘transfer pricing rules in the income tax law and Australia's future tax treaties to bring them into line with international best practice, improving the integrity and efficiency of the tax system.’ Mr Shorten stated that the reason for the reform was that ‘recent court decisions suggest our existing transfer pricing rules may be interpreted in a way that is out-of-kilter with international norms.’ Further, he stated that ‘the Government has asked the Treasury to review how the transfer pricing rules can be improved, including but not limited to how to be more in line with international best practice.’ He urged all interested parties to participate in this consultation process.

Usability extensions for the worklet service

The YAWL Worklet Service is an effective approach to facilitating dynamic flexibility and exception handling in workflow processes. Recent additions to the Service extend its capabilities through a programming interface that provides easier access to rules storage and evaluation, and an event server that notifies listening servers and applications when exceptions are detected, which together serve enhance the functionality and accessibility of the Service's features and expand its usability to new potential domains.

La Ley de Tecnologías de la Información y las Comunicaciones (L1341/09). Actualización de un marco legal para un sector en constante evolución

La necesidad de preparar al sector de tecnologías de la información y las comunicaciones para hacer frente a los desafíos que trae consigo el desarrollo de la convergencia en todas sus dimensiones, implicaba plantear un nuevo equilibrio entre la promoción del desarrollo competitivo del sector y el cumplimiento de los compromisos sociales de cobertura derivados de la naturaleza de servicio público que ostentan las telecomunicaciones. En consecuencia, desde comienzos de 2007 se trabajó, con una permanente retroalimentación intragubernamental y sectorial, en la estructuración de los pilares del Proyecto de Ley 112/07 Cámara - 340/08 Senado, que culminó en la sanción presidencial de la Ley 1341 el30 de julio de 2009. Este nuevo marco legal para un sector en constante evolución constituye un hito sin precedentes, que rompe con la tradición de más de diez años y seis intentos fallidos de ajuste legislativo e institucional.

Hacia la aplicación de las guías de la Organización para la Cooperación y el Desarrollo Económicos (OCDE) sobre precios de transferencia para empresas multinacionales y administraciones tributarias en Colombia

Los precios de transferencia ocupan el interés de los Estados en el mundo actual al constituir uno de los retos fundamentales del Derecho Internacional Tributario. En el seno de la Organización para la Cooperación y el Desarrollo Económicos (OCDE), creada en 1961, se discutieron y desarrollaron diversas propuestas para regular el fenómeno. Estas, se materializaron en Modelos de Convenios Tributarios e instrumentos de soft law, que hoy en día constituyen los principios internacionalmente aceptados en la materia. Las Guías de la OCDE sobre precios de transferencia para empresas multinacionales y administraciones tributarias son el cuerpo normativo de soft law que se erigen, en el Ordenamiento Internacional, como el norte de las legislaciones a nivel interno para efectos de regulación de dicha temática. Su adopción por parte de los países miembros y no miembros de la OCDE se enfrenta a problemas teóricos derivados del quebrantamiento del decantado principio de reserva de ley tributaria y el respeto por la seguridad jurídica, razón por la cual su incorporación ha variado de Estado a Estado. El presente trabajo recoge la experiencia en varios países europeos y latinoamericanos y pretende proponer una fórmula de adopción en Colombia, coherente con los principios constitucionales tributarios y con virtualidad de superar las críticas realizadas por la doctrina a la aplicación directa de las Guías.

O Acordo Antecipado de Preços – APA como solução para reduzir a insegurança jurídica na aplicação das regras de Preço de Transferência no Brasil

O presente trabalho monográfico é baseado fundamentalmente na comparação da legislação estrangeira e nos potenciais conflitos trazido pela doutrina brasileira na instituição de outros mecanismos de solução de controvérsias administrativos, já em operação no Brasil. Objetivando verificar a possibilidade de aplicação do Acordo Antecipado de Preços no direito brasileiro. Para tanto é verificado se o APA é uma forma eficiente de solução das inseguranças trazidas pela aplicabilidade das regras de preços de transferência em virtude da natureza específica das transações operacionalizadas entre pessoas vinculadas.

Oligopoly Model of a Debit Card Network

JEL Classification: G21, L13.

Security specification and enforcement in mediation system

Mediation techniques provide interoperability and support integrated query processing among heterogeneous databases. While such techniques help data sharing among different sources, they increase the risk for data security, such as violating access control rules. Successful protection of information by an effective access control mechanism is a basic requirement for interoperation among heterogeneous data sources. ^ This dissertation first identified the challenges in the mediation system in order to achieve both interoperability and security in the interconnected and collaborative computing environment, which includes: (1) context-awareness, (2) semantic heterogeneity, and (3) multiple security policy specification. Currently few existing approaches address all three security challenges in mediation system. This dissertation provides a modeling and architectural solution to the problem of mediation security that addresses the aforementioned security challenges. A context-aware flexible authorization framework was developed in the dissertation to deal with security challenges faced by mediation system. The authorization framework consists of two major tasks, specifying security policies and enforcing security policies. Firstly, the security policy specification provides a generic and extensible method to model the security policies with respect to the challenges posed by the mediation system. The security policies in this study are specified by 5-tuples followed by a series of authorization constraints, which are identified based on the relationship of the different security components in the mediation system. Two essential features of mediation systems, i. e., relationship among authorization components and interoperability among heterogeneous data sources, are the focus of this investigation. Secondly, this dissertation supports effective access control on mediation systems while providing uniform access for heterogeneous data sources. The dynamic security constraints are handled in the authorization phase instead of the authentication phase, thus the maintenance cost of security specification can be reduced compared with related solutions. ^