Mennyit ér a zajterhelés csökkenése? Zajvédelmi intézkedések értékelése a haszonértékelések átvitelével (The value of silence. An application of benefit-transfer methodology for evaluating noise-control actions)

Mind ez ideig a gyakorlatban kevéssé aknázták ki azt a lehetőséget, hogy a természeti tőke pénzbeli értékelése számszerű, egzakt információt nyújthat a döntéshozóknak. A szerzők a zajvédelmi intézkedések példáján keresztül tekintik át a természeti tőkejavak közgazdasági értékelésében rejlő lehetőségeket. Ismertetik a költség-haszon elemzés környezeti javakkal bővített formájának előnyeit, majd az általában elhanyagolt, a nem piaci javak által nyújtott haszon közgazdasági értékelésére alkalmas eljárásokat, külön kitérve a zajterhelés területére. Nagy hangsúlyt helyeznek a haszonfelmérések átvitelének széles körben alkalmazható módszereire. Bemutatják az általuk gyakorlatban végzett kutatás során szerzett tapasztalatokat, különös tekintettel arra, hogy a haszonértékelések átvitele hogyan járulhat hozzá a természeti tőkejavakkal kapcsolatos döntések során a társadalmi haszon maximalizálásához. _____ The paper offers an overview of the economic valuation of transportation-induced noise and cost-benefit analysis of noise-control measures and actions. Although economic valuation can provide hard, monetized data for decision-makers, it is relatively underused in practice. The study focuses on benefit-transfer methodology, where values obtained in previous cases are used as the basis for current evaluation. A specific application of benefit transfer is presented by a recent pilot project in Hungary, whereby a tool was developed for LGOs, enabling them to make preliminary assessments of the benefits of potential noise-control measures and rank possible options. This can help to optimize the benefits to society using limited resources.

A nettó jelenérték maximalizálása erőforrás-korlátos projektekben - egy új harmóniakereső metaheurisztika (A harmony search metaheuristic for the resourceconstrained project scheduling problem with discounted cash flows)

Ebben a tanulmányban a szerző egy új harmóniakereső metaheurisztikát mutat be, amely a minimális időtartamú erőforrás-korlátos ütemezések halmazán a projekt nettó jelenértékét maximalizálja. Az optimális ütemezés elméletileg két egész értékű (nulla-egy típusú) programozási feladat megoldását jelenti, ahol az első lépésben meghatározzuk a minimális időtartamú erőforrás-korlátos ütemezések időtartamát, majd a második lépésben az optimális időtartamot feltételként kezelve megoldjuk a nettó jelenérték maximalizálási problémát minimális időtartamú erőforrás-korlátos ütemezések halmazán. A probléma NP-hard jellege miatt az egzakt megoldás elfogadható idő alatt csak kisméretű projektek esetében képzelhető el. A bemutatandó metaheurisztika a Csébfalvi (2007) által a minimális időtartamú erőforrás-korlátos ütemezések időtartamának meghatározására és a tevékenységek ennek megfelelő ütemezésére kifejlesztett harmóniakereső metaheurisztika továbbfejlesztése, amely az erőforrás-felhasználási konfliktusokat elsőbbségi kapcsolatok beépítésével oldja fel. Az ajánlott metaheurisztika hatékonyságának és életképességének szemléltetésére számítási eredményeket adunk a jól ismert és népszerű PSPLIB tesztkönyvtár J30 részhalmazán futtatva. Az egzakt megoldás generálásához egy korszerű MILP-szoftvert (CPLEX) alkalmaztunk. _______________ This paper presents a harmony search metaheuristic for the resource-constrained project scheduling problem with discounted cash flows. In the proposed approach, a resource-constrained project is characterized by its „best” schedule, where best means a makespan minimal resource constrained schedule for which the net present value (NPV) measure is maximal. Theoretically the optimal schedule searching process is formulated as a twophase mixed integer linear programming (MILP) problem, which can be solved for small-scale projects in reasonable time. The applied metaheuristic is based on the "conflict repairing" version of the "Sounds of Silence" harmony search metaheuristic developed by Csébfalvi (2007) for the resource-constrained project scheduling problem (RCPSP). In order to illustrate the essence and viability of the proposed harmony search metaheuristic, we present computational results for a J30 subset from the well-known and popular PSPLIB. To generate the exact solutions a state-of-the-art MILP solver (CPLEX) was used.

Trimming the sails. The comparative political economy of expansionary fiscal consolidations. A Hungarian perspective

Provides a multidisciplinary and systematic analysis of the concept of fiscal consolidations. This book discusses the concept, suggesting that fiscal adjustment can be in trade-off with economic growth if certain conditions are met. Fiscal consolidation has significant short term costs which dampen economic growth. This widely shared consensus in literature on political economy makes fiscal adjustment highly unpopular. Benczes conducts a systematic analysis to find out whether it is possible to have fiscal consolidation and experience economic growth even in the short run.The book provides a clear, multidisciplinary and systematic analysis of the relatively new concept of the so-called expansionary fiscal consolidations. This concept suggests that fiscal adjustment can be in trade-off with economic growth if certain conditions are met. But why do only a few countries and only at certain times experience the expansionary effects, while others not at all? The necessary conditions and circumstances have been totally neglected in the literature, or analyzed only partially at best.Having evolved a theoretical framework, it is tested on a difficult case: Hungary, which has had the highest deficit in the European Union. The main question was whether Hungary has a chance to experience short term growth effects in times of adjustment. ----- Contents: List of Figures List of Tables Acknowledgements 1. Introduction Part One: A critical Assessment of the Concept of Non-Keynesian Effects 2. Stylized Facts of EU Countries’ Major Fiscal Episodes 3. An Expectational View of Fiscal Policy: A Non-Linear Approach to Fiscal Consolidation 4. The Composition of Adjustment and the Structure of Labor Markets: A Linear Approach to Fiscal Consolidation Part Two: Testing the Institutional Conditions of Non-Keynesian Effects in Hungary 5. From Goulash Communism To Neo-Kadarism: An Overview 6. Financial Intermediation in Hungary—a Comparative Perspective 7. The Structure of the Hungarian General Budget—a Decompositional Analysis 8. The Labor Market and Wage Bargaining in Hungary—the (Ir)relevance of a Social Pact 9. Conclusion References Appendices Index

Rules-based economic governance in the European Union: A reappraisal of national fiscal rules.

The economic and financial crisis of 2007/2009 has posed unexpected challenges on both the global and the regional level. Besides the US, the EU has been the most severely hit by the current economic crisis. The financial and banking crisis on the one hand and the sovereign debt crisis on the other hand have clearly shown that without a bold, constructive and systematic change of the economic governance structure of the Union, not just the sustainability of the monetary zone but also the viability of the whole European integration process can be seriously undermined. The current crisis is, however, only a symptom, which made all those contradictions overt that were already heavily embedded in the system. Right from the very beginning, the deficit and the debt rules of the Maastricht Treaty and the Stability and Growth Pact have proved to be controversial cornerstones in the fiscal governance framework of the European Economic and Monetary Union (EMU). Yet, member states of the EU (both within and outside of the EMU) have shown an immense interest in adopting numerical constraints on the domestic level without hesitation. The main argument for the introduction of national fiscal rules was mostly to strengthen the accountability and credibility of national fiscal policy-making. The paper, however, claims that a relatively large portion of national rules were adopted only after the start of deceleration of the debt-to-GDP ratios. Accordingly, national rules were hardly the sole triggering factors of maintaining fiscal discipline; rather, they served as the key elements of a comprehensive reform package of public budgeting. It can be safely argued, therefore, that countries decide to adopt fiscal rules because they want to explicitly signal their strong commitment to fiscal discipline. In other words, it is not fiscal rules per se what matter in delivering fiscal stability but a strong political commitment.