55 research outputs found
Extensions and Limits of the Specker-Blatter Theorem
No full textThe original Specker-Blatter Theorem (1983) was formulated for classes of structures of one or several binary relations definable in Monadic Second Order Logic MSOL. It states that the number of such structures on the set [n] is modularly C-finite (MC-finite). In previous work we extended this to structures definable in CMSOL, MSOL extended with modular counting quantifiers. The first author also showed that the Specker-Blatter Theorem does not hold for one quaternary relation (2003).
If the vocabulary allows a constant symbol c, there are n possible interpretations on [n] for c. We say that a constant c is hard-wired if c is always interpreted by the same element j ∈ [n]. In this paper we show:
(i) The Specker-Blatter Theorem also holds for CMSOL when hard-wired constants are allowed. The proof method of Specker and Blatter does not work in this case.
(ii) The Specker-Blatter Theorem does not hold already for with one ternary relation definable in First Order Logic FOL. This was left open since 1983.
Using hard-wired constants allows us to show MC-finiteness of counting functions of various restricted partition functions which were not known to be MC-finite till now. Among them we have the restricted Bell numbers B_{r,A}, restricted Stirling numbers of the second kind S_{r,A} or restricted Lah-numbers L_{r,A}. Here r is an non-negative integer and A is an ultimately periodic set of non-negative integers
Corporate social responsibility as a signal in the labor market
No full textInternational audienceWorking for a firm engaged in Corporate Social Responsibility (CSR) appeals to potential workers by boosting their self-image and sense of purpose. We propose an additional mechanism: CSR signals a firm's future treatment of workers. Our model links CSR engagement with a firm's propensity to support workers during unforeseen times of need. Under this assumption, a potential future need of the worker leads to more firms engaging in CSR and to a higher workers' willingness to accept lower wages. Our experiment manipulates potential future needs across treatments. While the aggregate analysis does not fully support our theory, exploratory analysis reveals that male workers respond as predicted, whereas female workers do not. Consistently, in a risky environment, male employers increase their CSR engagement, which raises the acceptance rate among male workers. These results do not hold for female employers and workers.</div
Corporate Social Responsibility as a Signal in the Labor Market
No full textWorking for a firm engaged in Corporate Social Responsibility (CSR) appeals to potential workers by boosting their self-image and sense of purpose. We propose an additional mechanism: CSR signals a firm's future treatment of workers. Our model links CSR engagement with a firm's propensity to support workers during unforeseen times of need. Under this assumption, a potential future need of the worker leads to more firms engaging in CSR and to a higher workers' willingness to accept lower wages. Our experiment manipulates potential future needs. While the aggregate analysis does not support our theory, exploratory analysis reveals that male workers respond as predicted, whereas female workers do not. Consistently, in a risky environment, male employers increase their CSR engagement, which raises the acceptance rate among male workers. These results are not observed among female employers and workers
Corporate Social Responsibility as a Signal in the Labor Market
No full textWorking for a firm engaged in Corporate Social Responsibility (CSR) appeals to potential workers by boosting their self-image and sense of purpose. We propose an additional mechanism: CSR signals a firm's future treatment of workers. Our model links CSR engagement with a firm's propensity to support workers during unforeseen times of need. Under this assumption, a potential future need of the worker leads to more firms engaging in CSR and to a higher workers' willingness to accept lower wages. Our experiment manipulates potential future needs. While the aggregate analysis does not support our theory, exploratory analysis reveals that male workers respond as predicted, whereas female workers do not. Consistently, in a risky environment, male employers increase their CSR engagement, which raises the acceptance rate among male workers. These results are not observed among female employers and workers
Corporate Social Responsibility as a Signal in the Labor Market
No full textData replication package of the article "Corporate social responsibility as a signal in the labor market", forthcoming at the Journal of Economic Behavior & Organization
Corporate Social Responsibility as a Signal in the Labor Market
No full textWorking for a firm engaged in Corporate Social Responsibility (CSR) appeals to potential workers by boosting their self-image and sense of purpose. We propose an additional mechanism: CSR signals a firm's future treatment of workers. Our model links CSR engagement with a firm's propensity to support workers during unforeseen times of need. Under this assumption, a potential future need of the worker leads to more firms engaging in CSR and to a higher workers' willingness to accept lower wages. Our experiment manipulates potential future needs. While the aggregate analysis does not support our theory, exploratory analysis reveals that male workers respond as predicted, whereas female workers do not. Consistently, in a risky environment, male employers increase their CSR engagement, which raises the acceptance rate among male workers. These results are not observed among female employers and workers
Fire, ice, and mother lines : A queerphenomenological reading of motherhood in Birgitta Stenbergs novel Eldar och is (2011)
No full textThe Swedish author Birgitta Stenberg (1932-2014) is primarily known for her subversive autobiographical novels based on her travelling and adventures in Europe, mainly Kärlek i Europa. Her work is characterized by subjects as sex, drugs, crime and breaking free from the limiting demands of everyday life. The book Eldar och is (2010) creates an autobiographical narrative around her grandmother Alma, her mother Ingeborg, and Birgitta herself. In the turn towards her own history the novel can be seen as a break from Stenberg’s earlier authorship. To analyze how motherhood is depicted in the novel I use Sara Ahmed and Judith Halberstam theorization of queer orientations and life lines, and motherhood studies based primarily on Jenny Björklunds queer reading of mothers who leave. In the analysis of the text two major themes emerged: Motherhood and class, and Motherhood, sexuality, and blood ties. The class theme shows how motherhood is shaped through class position and also how different class positions makes certain life lines within reach. Motherhood was also directly tied to changing class positions making motherhood both a sacrifice and possibility. The mothers also shaped their daughter’s orientation in the world in a profound way. The theme on sexuality and blood ties shows how sexuality posed both as a threat and a possibility to negotiate positions tied to motherhood. The result shows how heteronormative life scripts circumference motherhood but also how slips and slides on the straight line forms a resistance against these norms. By exposing the fantasy of the family motherhood as a construction, as balancing along a straight line, including slips, and uncertain blood ties, different realities come within reach
Fire, ice, and mother lines : A queerphenomenological reading of motherhood in Birgitta Stenbergs novel Eldar och is (2011)
No full textThe Swedish author Birgitta Stenberg (1932-2014) is primarily known for her subversive autobiographical novels based on her travelling and adventures in Europe, mainly Kärlek i Europa. Her work is characterized by subjects as sex, drugs, crime and breaking free from the limiting demands of everyday life. The book Eldar och is (2010) creates an autobiographical narrative around her grandmother Alma, her mother Ingeborg, and Birgitta herself. In the turn towards her own history the novel can be seen as a break from Stenberg’s earlier authorship. To analyze how motherhood is depicted in the novel I use Sara Ahmed and Judith Halberstam theorization of queer orientations and life lines, and motherhood studies based primarily on Jenny Björklunds queer reading of mothers who leave. In the analysis of the text two major themes emerged: Motherhood and class, and Motherhood, sexuality, and blood ties. The class theme shows how motherhood is shaped through class position and also how different class positions makes certain life lines within reach. Motherhood was also directly tied to changing class positions making motherhood both a sacrifice and possibility. The mothers also shaped their daughter’s orientation in the world in a profound way. The theme on sexuality and blood ties shows how sexuality posed both as a threat and a possibility to negotiate positions tied to motherhood. The result shows how heteronormative life scripts circumference motherhood but also how slips and slides on the straight line forms a resistance against these norms. By exposing the fantasy of the family motherhood as a construction, as balancing along a straight line, including slips, and uncertain blood ties, different realities come within reach
Áns saga bogsveigis
No full textABSTRACT
This article argues that the Icelandic legendary saga Áns
saga bogsveigis was written as a complementary Egils
saga with an alternative outcome, one in which it is not
the aggressive tyrant who wins, but the farmers. To achieve this,
the author uses an option that Egill’s family did not have, because
it was humiliating: The hero plays the wretched fool; consequently,
he is not taken seriously, and therefore he can build up power in
secret until he is able to defeat the king. At the same time, Áns
saga seems to be a twist on Þorsteins þáttr bǿjarmagns,
which seems to be a twist on the myth of Þórr’s visit to Útgarða-Loki.
In the myth, the superhumanly strong hero is unexpectedly humiliated,
because his opponent controls what he sees. In Þorsteins
þáttr, the hero turns the tables, because he controls
what his opponent sees. In Áns saga, the herculean
hero chooses to be humiliated, and this is why
he unexpectedly wins
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