Singular Lagrangians and Constraint Theory

2019 ◽  
pp. 189-222
Keyword(s):  
Constraint Theory ◽  
Singular Lagrangians

Contemporary Rights Theories

2018 ◽  
Author(s):  
Margaret Gilbert
Keyword(s):  
Choice Theory ◽  
Interest Theory ◽  
Constraint Theory ◽  
Rights Theories

The most influential theories of claims within contemporary rights theory are considered in relation to the demand-right problem. Starting with Hohfeld’s equivalence, contemporary theorists generally aim for an account of claims such that the members of a certain canonical set of claim-ascriptions are true. In pursuit of this aim they tend to focus on directed duties and to assume that these are in part constituted by plain duties. Reviewing the results obtained by adopting this aim and method, this chapter argues that in order to solve the demand-right problem we need to go beyond the resources of Thomson’s constraint theory, Joseph Raz’s “interest” theory, and similar views. The same goes for Hart’s “choice” theory and related positions, and several other approaches more briefly considered.

Hours of Paid Work and Volunteering: Evidence From Danish Panel Data

2021 ◽  
pp. 089976402199166
Author(s):  
Hans-Peter Y. Qvist
Keyword(s):  
Panel Data ◽  
Social Integration ◽  
Negative Relationship ◽  
Time Constraint ◽  
Integration Theory ◽  
Paid Work ◽  
Constraint Theory ◽  
The Social ◽  
Negative Effect ◽  
The Relationship

The nature of the relationship between the time people spend on paid work and volunteering remains debated in the social sciences. Time constraint theory suggests a negative relationship because people can allocate only as much time to volunteering as their work responsibilities permit. However, social integration theory suggests a more complex inverse U-shaped relationship because paid work not only limits people’s free time but also plays a key role in their social integration. Departing from these competing theories, this study uses two-wave panel data from Denmark to examine the relationship between hours of paid work and volunteering. In support of time constraint theory, the results suggest that hours of paid work have a significant negative effect on the total number of hours that people spend volunteering, not mainly because paid work hours affect people’s propensity to volunteer but because they affect the number of hours that volunteers contribute.

Post-nasal voicing in Japanese classifiers as exceptional triggering: implications for Indexed Constraint Theory

2020 ◽  
Vol 65 (4) ◽  
pp. 471-495
Author(s):  
Phillip Burness ◽  
Kevin McMullin
Keyword(s):  
Constraint Theory ◽  
Morpheme Boundary ◽  
Indexed Constraints

AbstractIndexed constraints are often used in constraint-based phonological frameworks to account for exceptions to generalizations. A point of contention in the literature on constraint indexation revolves around indexed markedness constraints. While some researchers argue that only faithfulness constraints should be indexed, others argue that markedness constraints should be eligible for indexation as well. This article presents data from Japanese for which a complete synchronic analysis requires indexed markedness constraints but argues that such constraints are only necessary in cases where a phonological repair applies across a morpheme boundary. We then demonstrate that algorithms for learning grammars with indexed constraints can be augmented with a bias towards faithfulness indexation and discuss the advantages of incorporating such a bias, as well as its implications for the debate over the permissibility of indexed markedness constraints.

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