Evidence-informed decision making (EIDM) can optimize health services and systems. EIDM involves defining problems, identifying measures to tackle them, assessing the quality of global and local evidence and translating it for the main stakeholders in line with social values and laws. Brazil encourages the use of EIDM in health policy in Piripiri, a municipality of 61,840 inhabitants in the country's poorest region, and launched Brazil's first Evidence Use in Health Care (NEv) center in 2010. The development and preliminary results of the NEv center are reported and its vision, composition, mandate, and activities are presented. The NEv center experience has the support of the Evidence-Informed Policy Network, the Latin American and Caribbean Center of Information on Health Sciences and federal and municipal governments. The decentralization of financing and the provision of healthcare services, the expansion of EIDM in management, and the local political context illustrate the progress of the experiment. Its activities include the production and dissemination of deliberative briefs and dialogues with opinion shapers, workers and health service users. Monitoring and evaluation are underway and the results will help to broaden the scale of activities in Brazil and abroad.
Technological development and the increased use of the internet have led to the proliferation of virtual communities. Some of these communities have created and circulated their own currency for exchanging goods and services. Bitcoin is currently the most popular among these virtual or digital currencies and has been in news recently because of the wild fluctuations in its ‘value’ and also significant venture capital investment in entities associated with it.1 Bitcoin is relevant in several areas of the financial system and is therefore of interest to central banks, consumers and investors. Digital currencies are part of a broader group of virtual currencies that include credit card points, air miles, loyalty points and coupons (Chart 1). With the advent of the Internet, mobile devices and detailed consumer information, companies are increasingly using digital currencies as a marketing tool. As a result, there has been a sharp increase in the use of digital currencies, particularly for app-based coins and tokens, mobile coupons, and personal data exchanged for digital content. As these trends evolve, digital currencies have the potential to become more popular and compete with traditional currencies. This paper aims to provide some clarity in particular on Bitcoin, its role and potential future use in the financial system and the risks associated with this form of digital currency.. It will begin by providing a short introduction to the Bitcoin network as well as describe the benefits of allowing the Bitcoin network to develop and innovate. It will highlight concerns for consumers, policymakers and financial regulators. Next it will analyze the role that Bitcoin could play in the financial system. The paper will conclude by providing recommendations to address policymakers’ concerns while allowing for further innovation within the Bitcoin network. An initial comprehensive overview of this kind is absent from the existing literature. This paper intends to fill that gap in the literature.
Before the Constitutional Court of Serbia, there is a pending case on reviewing constitutionality and legality of the Autonomous Province of Vojvodina's Statute. 30 MPs, one civic organization and one individual initiated the proceedings, back in 2009, right after the Statute came into force. This article, which relies on author's amicus curiae brief in the mentioned case, offers three claims. First, the author claims that Serbia is not a typical unitary state, as for example, France or Romania, since it has gained several important characteristics of a regional state. Thus, for the time being, according to a vertical division of authority, Serbia can be defined as a state that is neither unitary nor regional, but rather a state 'in between' these two forms. Second, the author argues against an idea of textual dogmatization of the Constitution employed by the initiator of the proceedings (MPs), and after a deep analysis, rejects most of the arguments aimed at invalidating the provisions of the Statute, finding them unpersuasive and unfounded. Third, starting from the citizens' sovereignty, on which the political autonomy of Vojvodina is based (Articles 12, 176 and 182 of the Serbian Constitution of 2006), the author urges safeguarding the political decentralization guaranteed by the Constitution, since it gives more power to citizens in public decision-making and strengthens the democratic principle on which the Republic of Serbia is based. It is also stressed that a potential invalidation of the statutory provisions concerning the protection of national minorities, would endanger this protection, since, in accordance with the principle of subsidiarity, the constitutional protection is the most effective if implemented by the act of the regional authority of the territory where the members of national minorities traditionally live in a great number.
The paper discusses the importance of the subsidiarity principle to the regulation of the global processes. It also analyzes the role of the subsidiary principle as a fundamental principle of the European Union legal framework in the perception of the identity of the civilizations as well as its influence on political-legal systems. Not only does the paper emphasize the importance of this principle to the European identity, but it also discloses the role of the idea of the subsidiarity, which was played in legal and social consciousness of the communities attributed to the Western and Eastern civilizations. The principle of subsidiarity is used here as a tool to disclose the identity of the civilisations and differences among them. Simultaneously, its positive role is highlighted in the global community’s solution of different kinds of conflicts (ideological, economic, religious or cultural) that arise among nations, countries or different civilisations. This article is aimed to demonstrante that reception of the principle of subsidiarity and it‘s institutionalization in the European Union and national legal frameworks are not accidental. The tools of legislative regulation based on this principle prevent global system from disregarding cultural differences. At the same time, it does not allow local identity to destroy the world unity. Thus, unified social systems can perfectly coexist with national, regional and local units, the latter ones maintaining their organizational structure and cultural traditions. Subsidiarity idea combining opposites makes sense as a principle of creating this diversity in unity, which ensures the integrity of autonomous structures making up the whole, preserving national, regional and cultural specificities of countries and people around the globe. The support of these processes provides the public with the opportunity to discover effective forms for the realization of self-organization and implementation of their needs and developing appropriate social structures and legal institutions regulating their activity. Through the examination of the concept of subsidiarity and aspects of its practical application in organizations, the article discusses the polarities of the different structure and management forms of the institutionalization of the principle of subsidiarity in the countries and its effect in the formation of the governance levels in the state, showing how balance of powers is achieved based on the subsidiarity principle, creating an effective mechanism of function distribution (determination of exclusive competencies) and their implementation (institutional interaction, their operational control). In structuring the institutional systems of the organization of the state, the subsidiarity concept is complemented with the elements of the management system decentralization, democratization, federalism and regional and local self-governments.
For various services, OTP (One-Time Password) is increasingly employed to sign in services. The most popular OTP scheme is S/KEY. However, S/KEY scheme is vulnerable to hash collision. In order to solve this problem, Choi and Kim proposed an OTP scheme based on pairing operation. This scheme overcame hash collision problem. Unfortunately, the scheme is vulnerable against insider attack. In this paper, we propose insider attack-resistant OTP scheme based on pairing operation. Our scheme employed zero-knowledge proof to generate OTP values. In short, our scheme sends an OTP and two random numbers encoded with XOR; any adversary has no sense about the random numbers. Our scheme authenticates entities with an OTP and gain a hint on next OTP value from one of random numbers. Consequently, we present insider attack-resistant OTP scheme by eliminating shared parameter among insider (e.g. time stamp).
Abstract. Consider a joint distribution (X,A) on a set X ×{0, 1}ℓ. We show that for any family F of distinguishers f: X × {0, 1}ℓ → {0, 1}, there exists a simulator h: X → {0, 1}ℓ such that 1. no function in F can distinguish (X,A) from (X,h(X)) with advantage ǫ, 2. h is only O(23ℓǫ−2) times less efficient than the functions in F. For the most interesting settings of the parameters (in particular, the cryptographic case where X has superlogarithmic min-entropy, ǫ> 0 is negligible and F consists of circuits of polynomial size), we can make the simulator h deterministic. As an illustrative application of this theorem, we give a new security proof for the leakage-resilient stream-cipher from Eurocrypt’09. Our proof is simpler and quantitatively much better than the original proof using the dense model theorem, giving meaningful security guarantees if instantiated with a standard blockcipher like AES. Subsequent to this work, Chung, Lui and Pass gave an interactive variant of our main theorem, and used it to investigate weak notions of Zero-Knowledge. Vadhan and Zheng give a more constructive version of our theorem using their new uniform min-max theorem. 1
We consider a class of two-party function evaluation protocols in which the parties are allowed to<br/>use ideal functionalities as well as a set of powerful primitives, namely commitments, homomorphic<br/>encryption, and certain zero-knowledge proofs. We illustrate that with these it is possible to capture<br/>protocols for oblivious transfer, coin- ipping, and generation of multiplication-triple.<br/>We show how any protocol in our class can be compiled to a symbolic representation expressed<br/>as a process in an abstract process calculus, and prove a general computational soundness theorem<br/>implying that if the protocol realises a given ideal functionality in the symbolic setting, then the<br/>original version also realises the ideal functionality in the standard computational UC setting. In<br/>other words, the theorem allows us to transfer a proof in the abstract symbolic setting to a proof in<br/>the standard UC model.<br/>Finally, we show that the symbolic interpretation is simple enough in a number of cases for the<br/>symbolic proof to be partly automated using ProVerif
In the paper, we present a kind of quantum voting protocol, which is based on controlled quantum teleportation of local unitary operations in non-symmetric quantum channel. In this protocol, the umpire CA with zero knowledge proof quantum identity authentication ensures voter’s anonymous identity authentication. The counting institution Bob generates a high-dimensional Greenberger-Horne-Zeilinger entangled state to establish a high-dimensional quantum communication channel. Performing the local unitary operation on their low-dimensional quantum ballot, voter’s quantum vote is teleportated by asymmetric matrix measurement and scrutineer Charlie auxiliary measuring. With the scrutineer Charlie’s help, Bob achieves the voting result by the output of unitary operation. Compared with other general quantum operation teleportation quantum voting protocol, the protocol utilizes the quantum information and transmission of quantum channel, which have different dimensions, so single particle information cannot be stolen, and can prevent forgery. The electoral process is fair and undeniable, owing to Charlie’s supervision. Since the success probability of quantum teleportation of local unitary operations is 1, the quantum voting is reliable.
In an earlier article, I argued that shadow banking—the provision of financial services and products outside of the traditional banking system, and thus without the need for bank intermediation between capital markets and the users of funds—is so radically transforming finance that regulatory scholars need to rethink their basic assumptions. This Article attempts to rethink the corporate governance assumption that owners of firms should always have their liability limited to the capital they have invested. In the relatively small and decentralized firms that dominate shadow banking, equity investors tend to be active managers. Limited liability gives these investor-managers strong incentives to take risks that could generate outsized personal profits, even if that greatly increases systemic risk. For shadow banking firms subject to this conflict, limited liability should be redesigned to better align investor and societal interests.
espanolEstudiaremos en clave argumentativa la contribucion de Alfonso Reyes a la polemica acerca del “mexicanismo” o de la “espanolidad” de Juan Ruiz de Alarcon, debate que se inicia en pleno ambiente revolucionario mexicano. El aporte que el diplomatico nos brinda ofrece material para aproximarnos no solo a la evolucion del debate, sino tambien a la verdadera apuesta de la discusion a los ojos de Reyes. Para Reyes, el debate gira en torno al nivel cultural de la colonia en los siglos XVI y XVII y concierne las posibilidades de desarrollo de un espiritu americano en las primeras decadas que siguen a la hispanizacion del Nuevo Mundo. El ensayista aprovecha el debate para recalcar como las culturas de la metropoli y de la colonia se fomentan mutuamente desde el primer contacto. Rebatiendo el ambiente nacionalista en el que el debate se inicio, Reyes convierte el caso Alarcon en otra prueba mas del enriquecimiento cultural que trae el intercambio de doble sentido entre Espana y la Nueva Espana. EnglishFrom an argumentative perspective, we study the contribution of Alfonso Reyes to the polemic about the New Mexican or Spanish identity of Juan Ruiz de Alarcon, a debate initiated in the nationalist ambiance of the Mexican Revolution. Reyes’ part in the discussion offers elements which enable us to reconsider the debate’s evolution, but also gives us the opportunity to examine the real stake of the polemic in Reyes’ eyes. For the essayist, much of the debate revolves around the cultural level of the colony in the 16th and 17th centuries and concerns the development of an American spirit in the first decades after the colonization of the New World. The essayist makes use of the discussion to emphasize the way in which the cultures of both metropolis and colony have cross-fertilized immediately after the first contact. Going against the nationalist atmosphere in which the debate had originally started, Reyes turns the case Alarcon into one more proof of the cultural enrichment that the two-way exchange between Spain and New Spain has engenderes.
I employ vector autoregression to identify whether Bitcoin exchange volume shocks increase subsequent real Bitcoin transaction activity outside exchanges. This type of examination is not possible with traditional currency pairs on account of their lack of a perfect ledger mechanism like that of cryptocurrency systems. I find that increased exchange activity has asymmetric effects across user types, with exchange volume innovations tending to stifle the top 100 most popular user wallets than the remaining 2.9 million wallets, many of which are associated with gambling. If you suspect that the exchange activity is for anything other than speculative "hoarding'', the evidence should be found in the transactions between users, and its transmission is very weak. A very persistent response in the exchanges to news innovations was found and is a significant concern from a market manipulation standpoint. Dynamic multipliers were utilized to assess the degree to which money supply increases were distributed across wallet types via transactions. As the money supply increases, I find that the top 100 wallets tend to benefit in the form of increased transactions, while the effect for the millions of remaining wallets remains ambiguous.
Grid computing is the computing paradigm that is concerned with coordinated resource sharing and problem solving in dynamic, autonomous multi-institutional virtual organizations. Data exchange and service allocation between virtual organizations are challenging problems in the field of Grid computing, due to the decentralization of Grid systems. The resource management in a Grid system ensures efficiency and usability. The required efficiency and usability of Grid systems can be achieved by building a decentralized multi-virtual Grid system. In this thesis we present a decentralized multi-virtual resource management framework in which the system is divided into virtual organizations, each controlled by a broker. An overlay network of brokers is responsible for global resource management and managing the allocation of services. We address two main issues for both local and global resource management: 1) decentralized allocation of tasks to suitable nodes to achieve both local and global load balancing; and 2) handling of both regular and broker failures. Experimental results verify that the system achieves dependable performance with various loads of services and broker failures.
Henry Corrigan-Gibbs, Wendy Mu, Dan Boneh, Bryan Ford
The security of any cryptosystem relies on the secrecy of the system's secret keys. Yet, recent experimental work demonstrates that tens of thousands of devices on the Internet use RSA and DSA secrets drawn from a small pool of candidate values. As a result, an adversary can derive the device's secret keys without breaking the underlying cryptosystem. We introduce a new threat model, under which there is a systemic solution to such randomness flaws. In our model, when a device generates a cryptographic key, it incorporates some random values from an "entropy authority" into its cryptographic secrets and then proves to the authority, using zero-knowledge-proof techniques, that it performed this operation correctly. By presenting an entropy-authority-signed public key certificate to a third party (like a certificate authority or SSH client), the device can demonstrate that its public key incorporates randomness from the authority and is therefore drawn from a large pool of candidate values. Where possible, our protocol protects against eavesdroppers, entropy authority misbehavior, and devices attempting to discredit the entropy authority. To demonstrate the practicality of our protocol, we have implemented and evaluated its performance on a commodity wireless home router. When running on a home router, our protocol incurs a $1.7\times$ slowdown over conventional RSA key generation and it incurs a $3.6\times$ slowdown over conventional EC-DSA key generation.
Applying the Monti-Klein framework, we examine the optimal financing strategy of a fi rm that requires funding for individual projects at an imperfect credit market. In particular, we study under which circumstances the firm should raise debt for projects separately (decentralized funding) or jointly (centralized funding) and how this organizational choice af fects the selection and resource allocation among projects. We fi nd that it is optimal to decentralize funding when competition at the credit market and the fi rm s level of equity are both either rather low or rather high. In this case, funding the strongest projects is optimal. For intermediate values of competition and equity, centralized funding is optimal. In this case, bundling strong projects with weak projects can be optimal (corporate socialism). All these funding strategies serve winner picking, i.e. the firm shifts disproportionately more funds to the pro table projects. In contrast to previous literature, winner picking and corporate socialism are not necessarily exclusive; rather, corporate socialism allows winner picking more aggressively.
With decentralization and urbanization, the debts of state and local governments and of quasi-public agencies have grown in importance. Rapid urbanization in developing countries requires large-scale infrastructure financing to help absorb influxes of rural populations. Borrowing enables state and local governments to capture the benefits of major capital investments immediately and to finance infrastructure more equitably across multiple generations of service users. \n \nWith debt comes the risk of insolvency. Subnational debt crises have reoccurred in both developed and developing countries. Restructuring debt and ensuring its sustainability confront moral hazard and fiscal incentives in a multilevel government system; individual subnational governments might free-ride common resources, and public officials at all levels might shift the cost of excessive borrowing to future generations. \n \nThis book brings together the reform experiences of emerging economies and developed countries. Written by leading practitioners and experts in public finance in the context of multilevel government systems, the book examines the interaction of markets, regulators, subnational borrowers, creditors, national governments, taxpayers, ex-ante rules, and ex-post insolvency systems in the quest for subnational fiscal discipline. \n \nSuch a quest is intertwined with a country’s historical, political, and economic context. The formal legal framework interacts with political reality to influence the dynamics of and incentives for reform. Often, the resolution of a subnational debt crisis unfolds in the context of macroeconomic stabilization and structural reforms. \n \nThe book includes reforms that have not been covered by previous literature, such as those of China, Colombia, France, Hungary, Mexico, and South Africa. The book also presents a comprehensive review of how the United States developed its debt market for state and local local governments through a series of reforms that are path \ndependent, including the reforms and lessons learned following state defaults in the \n1840s and the debates that shaped the enactment of Chapter 9 of the Bankruptcy \nCode in 1937. Looking forward, pressures on subnational finance are likely to continue—from the fragility of global recovery, the potentially higher cost of capital, refinancing risks, \nand sovereign risks. This book is essential reading for anyone wanting to know the \nchallenges and reform options in debt restructuring, insolvency frameworks, and \npublic debt market development.
This research was conducted to empirically prove the effect of financial performance measured from the ratio ofexpense to income, fiscal efforts, financing capability, and the level of fiscal decentralization degree towards anumber of variables, which are: (1) capital expenditure, (2) economic growth and poverty, (3) economic growthand poverty through capital expenditure, and (4) poverty through capital expenditure and economic growth.This research was performed using path analysis method. The samples of this research are 38 districts/cites inEast Java Province during the last 7 years (2005-2011).The result of this research shows that the financial performance measured from financing capability showsinsignificant direct effect towards capital expenditure and economic growth while the effect to poverty showspositive significant effect. Furthermore, from the effects of indirect financial performance through capitalexpenditure, there are variables of expenditure to income ratio, fiscal efforts, and degree of fiscaldecentralization variables which have significant indirect effects towards the economic growth (in a positive way)and poverty (in a negative way) while for the financial performance effects through capital expenditure andeconomic growth to poverty have significant indirect and negative influence, particularly those are measuredusing expense to income ratio, fiscal efforts, and the level of fiscal decentralization. Finally, in order to betterfinancial performance in particular it is necessary to optimize the financing capabilities in terms of both revenueand expenditure, in terms of revenue optimization of PAD, Silpa, and loan, while expenditure optimizers need toconduct a review of expenditure that has been done. Keywords : financial performance, expense to income ratio, fiscal effort, financing capability, the level of fiscaldecentralization, capital expenditure, economic growth, poverty
The objective of this study was to explore the impact of decentralization of central government functions to local authorities in Tanzania. The study involved a sample population of 50 people and data were collected from primary and secondary source of data. The objective of this research was to explore the impact of decentralization of Central Government functions to Local authorities in Tanzania. There are four Specific Objectives to this study. This study used the descriptive type of research and the findings addressed the research questions. The study came with the following findings; the decentralized functions have good impact on decision-making through structured meetings, people are involved in planning and budgeting process by 75%. Resources such as finance and manpower are managed by people at grass root and revenue collection is done by the local authorities. The study concludes that the decentralized functions have impacts on autonomy of local authorities, increased control of financial and human capital by local authorities hence increase of performance, transparency and good governance in local authorities. The study came with recommendations for improvements as follows; the capacity building should be strengthened to extension officers and local leaders. Local leaders should identify their roles and obligations. Also they should provide full autonomy and authority without interference to local authorities in areas of plans and budgets. The central government should leave some revenue sources to local authorities which are collected by central government. There should be non-interference of central government in decision-making to local authorities by District Commissioners’ office and Regional Secretariat. There should be harmony between councillors and management to avoid unnecessary conflicts.