7,594 research outputs found

    Spectral spaces and ultrafilters

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    Let XX be the prime spectrum of a ring. In [arXiv:0707.1525] the authors define a topology on XX by using ultrafilters and they show that this topology is precisely the constructible topology. In this paper we generalize the construction given in [arXiv:0707.1525] and, starting from a set XX and a collection of subsets F\mathcal{F} of XX, we define by using ultrafilters a topology on XX in which F\mathcal F is a collection of clopen sets. We use this construction for giving a new characterization of spectral spaces and several new examples of spectral spaces.Comment: 16 pages. To appear in Communications in Algebr

    Pr\"ufer-like conditions on an amalgamated algebra along an ideal

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    Let f:A⟶Bf:A\longrightarrow B be a ring homomorphism and let b\mathfrak b be an ideal of BB. In this paper we study Pr\"ufer like conditions in the amalgamation of AA with BB along b\mathfrak b, with respect to ff, a ring construction introduced in 2009 by D'Anna, Finocchiaro and Fontana.Comment: 17 pages. To appear in Houston Journal of Mathematic

    These confabulations are guaranteed to improve your marriage! Toward a teleological theory of confabulation

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    Confabulation is typically understood to be dysfunctional. But this understanding neglects the phenomenon’s potential benefits. In fact, we think that the benefits of non-clinical confabulation provide a better foundation for a general account of confabulation. In this paper, we start from these benefits to develop a social teleological account of confabulation. Central to our account is the idea that confabulation manifests a kind of willful ignorance. By understanding confabulation in this way, we can provide principled explanations for the difference between clinical and non-clinical cases of confabulation and the extent to which confabulation is rational

    Behaviour in a Two-Stage Two Public Goods Experiment

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    In a two-stage two-public good experiment, we study the effect that subjects’ possibility of contributing to a public good in the first stage of the game has on the voluntary contributions to the second public good. Our results show that subjects do not follow either the Nash strategy or the Pareto efficient strategy and that they perceive the two public goods as substitutes.public goods, experiments, voluntary provision

    Cultural Education and the Voluntary Provision of Cultural Goods: An Experimental Study

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    We study the effect that the possibility of investing in cultural education has on the voluntary contributions to a cultural good. This is done in a two-stage public-good experiment. We also provide treatments with different context in order to control for a possible framing effect. Our results show the absence of an effect of cultural education on the contributions to the cultural good and a slight increase in the allocations of subjectsÂendowments to the cultural good when the cultural context is implemented in the laboratory.cultural education, cultural good, framing, experiments, voluntary provision

    Cultural Education and the Voluntary Provision of Cultural Goods: An Experimental Study

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    We study the effect of the possibility of investing in cultural education on the voluntary contributions to the cultural good. Moreover, we provide treatments with different context in order to control for a possible framing effect. Our results show the absence of effect of cultural education on the contributions to the cultural good and a slight increase in the allocations of subjects’ endowments to the cultural good when the cultural context is implemented in the laboratory.cultural education, cultural good, framing, experiments, voluntary provision

    An Estimated DSGE Model for Sweden with a Monetary Regime Change

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    Using Bayesian methods, we estimate a small open economy model for Sweden. We explicitly account for a monetary regime change from an exchange rate target zone to flexible exchange rates with explicit inflation targeting. In each of these regimes, we analyze the behavior of the monetary authority and the relative contribution to the business cycle of structural shocks in detail. Our results can be summarized as follows. Monetary policy is mainly concerned with stabilizing the exchange rate in the target zone and with price stability in the inflation targeting regime. Expectations of realignment and the risk premium are the main sources of volatility in the target zone period. In the inflation targeting period, monetary shocks are important sources of volatility in the short run, but in the long run, labor supply and preference shocks become relatively more important. Foreign shocks are much more destabilizing under the target zone than under inflation targeting.Bayesian estimation; DSGE models; target zone; inflation targeting; regime change
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