Mostrando recursos 1 - 6 de 6

  1. How do corporatist and liberal labour markets differ, and what does it mean for economic policy?

    Sturn, Simon
    How do labour market institutions affect unemployment? Whereas some empirical studies find that mainly such institutions explain unemployment, others argue that this correlation is not robust. By means of a survey of the literature I provide evidence that one explanation for these contradictory results is that labour market institutions affect unemployment differently within distinct labour market regimes. Because of institutional complementarities and a trade-off between external and internal flexibility, certain labour market institutions yield distinct impacts on unemployment within labour markets characterized by a high degree of corporatism, good labour relations, and high internal flexibility. Thus it is crucial for policymakers...

  2. Theoretical vs. Empirical Power Indices: Do Preferences Matter?

    Badinger, Harald; Mühlböck, Monika; Nindl, Elisabeth; Reuter, Wolf Heinrich
    This paper investigates whether preference-based (empirical) power indices differ significantly from their preference-free (theoretical) counterparts. Drawing on the to date most comprehensive sample of EU Council votes (1993- 2011), we use item-response models to estimate the EU27 member states' preferences (ideal points) in a one-dimensional policy space. Their posterior distributions are then used for the calculation of empirical versions of the Banzhaf and the Shapley-Shubik index, invoking the concepts of connected coalitions and bloc voting. Our ideal point estimates indicate significant differences between member states' preferences, which often translate into significant differences between empirical and theoretical power under individual voting. However, the formation of voting blocs appears to offset differences in...

  3. Discussion on Fifty Years of Classification and Regression Trees

    Rusch, Thomas; Zeileis, Achim
    In this discussion paper, we argue that the literature on tree algorithms is very fragmented. We identify possible causes and discuss good and bad sides of this situation. Among the latter is the lack of free open-source implementations for many algorithms. We argue that if the community adopts a standard of creating and sharing free open-source implementations for their developed algorithms and creates easy access to these programs the bad sides of the fragmentation will be actively combated and will benefit the whole scientific community. (authors' abstract)

  4. Bridging abstraction layers in process mining

    Baier, Thomas; Mendling, Jan; Weske, Mathias
    While the maturity of process mining algorithms increases and more process mining tools enter the market, process mining projects still face the problem of different levels of abstraction when comparing events with modeled business activities. Current approaches for event log abstraction try to abstract from the events in an automated way that does not capture the required domain knowledge to fit business activities. This can lead to misinterpretation of discovered process models. We developed an approach that aims to abstract an event log to the same abstraction level that is needed by the business. We use domain knowledge extracted from existing process documentation to semi-automatically match events and activities....

  5. House prices, capital inflows and macroprudential policy

    Mendicino, Caterina; Punzi, Maria Teresa
    This paper evaluates the monetary and macroprudential policies that mitigate the procyclicality arising from the interlinkages between current account deficits and financial vulnerabilities. We develop a two-country dynamic stochastic general equilibrium (DSGE) model with heterogeneous households and collateralised debt. The model predicts that external shocks are important in driving current account deficits that are coupled with run-ups in house prices and household debt. In this context, optimal policy features an interest-rate response to credit and a LTV ratio that countercyclically responds to house price dynamics. By allowing an interest-rate response to changes in financial variables, the monetary policy authority improves social welfare,...

  6. Discriminatory Taxes are Unpopular. Even when they are Efficient and Distributionally Fair

    Sausgruber, Rupert; Tyran, Jean-Robert
    We explore the political acceptance of taxation in commodity markets. Participants in our experiment earn incomes by trading and must collectively choose one of two tax regimes to raise a given tax revenue. A "uniform tax" (UT) imposes the same tax rate on all markets and is fair in that it yields the same - but low - income to participants in all markets. The "discriminatory tax" (DT) imposes a higher burden on markets with inelastic demand and is therefore efficient but it is also unfair in that incomes are unequal across markets. We find that DT are unpopular, as...

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