The relative dynamics of investment and the current account in the G-7 economies

This paper contributes to the empirics of the intertemporal approach to the current account. We use a cointegrated VAR framework to identify permanent and transitory components of country-specific and global shocks. Our approach allows us to empirically investigate the sensitivity to persistence implied by many forward-looking models and our results shed new light on the excess volatility of investment encountered by Glick and Rogoff (JME 1995). In G7 data, we find the relative current-account and investment response to be in line with the intertemporal approach

Induced conjugacy classes, prehomogeneous varieties, and canonical parabolic subgroups

We extend the notion of induced conjugacy classes in reductive groups, introduced by Lusztig and Spaltenstein for unipotent classes, to arbitrary classes. We study properties of equivariant fibrations of prehomogeneous affine spaces, especially the existence of relative invariants. We also detect prehomogeneous affine spaces as subquotients of canonical parabolic subgroups attached to elements of reductive groups in the sense of Jacobson-Morozov. These results are prerequisites for making the geometric expansion of the Arthur-Selberg trace formula more explicit.Comment: New proofs given for the results on induction of conjugacy classes in section

The Metric-FF Planning System: Translating "Ignoring Delete Lists" to Numeric State Variables

Planning with numeric state variables has been a challenge for many years, and was a part of the 3rd International Planning Competition (IPC-3). Currently one of the most popular and successful algorithmic techniques in STRIPS planning is to guide search by a heuristic function, where the heuristic is based on relaxing the planning task by ignoring the delete lists of the available actions. We present a natural extension of ``ignoring delete lists'' to numeric state variables, preserving the relevant theoretical properties of the STRIPS relaxation under the condition that the numeric task at hand is ``monotonic''. We then identify a subset of the numeric IPC-3 competition language, ``linear tasks'', where monotonicity can be achieved by pre-processing. Based on that, we extend the algorithms used in the heuristic planning system FF to linear tasks. The resulting system Metric-FF is, according to the IPC-3 results which we discuss, one of the two currently most efficient numeric planners

Balancing language planning and language rights: Catalonia's uneasy juggling act

In the 1980s, language planning in Catalonia was carried out against a background of general consensus that major language recovery measures were needed in order to improve the linguistic and sociolinguistic situation of Catalan. Demographic and social conditions favoured language reforms aimed at making Catalan the official language of the autonomous region of Catalonia, promoting its use in public and in the education system. Non-Catalans, too, supported these language policies as the use of Castilian (Spanish) was not restricted. This paper discusses the language planning measures resulting from the 1998 Law of Catalan. Catalonia seems to have reached a point where language recovery and language promotion come up against an evolving sociolinguistic situation marked by changed demographic conditions and social attitudes. The debate about the 1998 Law of Catalan demonstrates that popular consensus can no longer be relied upon. Instead, conflicting views are being voiced as the promotion of Catalan above Castilian has come to be seen as an infringement of the language rights of non-Catalans. Public discourse has become more polemical, bipartisan and politicised. The question arises as to how far a region within a multilingual member state of the EU can go in promoting monolingual language policies

The role of self-touch experience in the formation of the self

The human self has many facets: there is the physical body and then there are different concepts or representations supported by processes in the brain such as the ecological, social, temporal, conceptual, and experiential self. The mechanisms of operation and formation of the self are, however, largely unknown. The basis is constituted by the ecological or sensorimotor self that deals with the configuration of the body in space and its action possibilities. This self is prereflective, prelinguistic, and initially perhaps even largely independent of visual inputs. Instead, somatosensory (tactile and proprioceptive) information both before and after birth may play a key part. In this paper, we propose that self-touch experience may be a fundamental mechanisms to bootstrap the formation of the sensorimotor self and perhaps even beyond. We will investigate this from the perspectives of phenomenology, developmental psychology, and neuroscience. In light of the evidence from fetus and infant development, we will speculate about the possible mechanisms that may drive the formation of first body representations drawing on self-touch experience

Comprehensive Services: Charting Progress for Babies in Child Care Research-Based Rationale

This rationale presents research on factors that put babies and toddlers at risk for unhealthy development and the benefits of comprehensive health, mental health, and family support services. It also examines how state policies can improve care for babies. As part of the Charting Progress for Babies in Child Care project, this rationale supports the Policy Framework's recommendation to: Link necessary services for vulnerable babies and toddlers to child care settings

Negotiation Games

Negotiations, a model of concurrency with multi party negotiation as primitive, have been recently introduced by J. Desel and J. Esparza. We initiate the study of games for this model. We study coalition problems: can a given coalition of agents force that a negotiation terminates (resp. block the negotiation so that it goes on forever)?; can the coalition force a given outcome of the negotiation? We show that for arbitrary negotiations the problems are EXPTIME-complete. Then we show that for sound and deterministic or even weakly deterministic negotiations the problems can be solved in PTIME. Notice that the input of the problems is a negotiation, which can be exponentially more compact than its state space.Comment: In Proceedings GandALF 2015, arXiv:1509.06858. arXiv admin note: substantial text overlap with arXiv:1405.682