1,422 research outputs found
Who’s Afraid of Good Governance? State Fiscal Crises, Public Pension Underfunding, and the Resistance to Governance Reform
Much attention has been paid to the significant underfunding of many state and local employee pension plans, as well as to efforts by states and cities to alleviate that underfunding by modifying the benefits provided to workers. Yet relatively little attention has been paid to the systemic causes of such financial distress—such as chronic underfunding that shifts financial burdens to future taxpayers, and governance rules that may reduce the likelihood that a plan’s trustees will make optimal investment decisions. This Article presents the results of a qualitative study of the funding and governance provisions of twelve public pension plans that are a mix of state and local plans of various funding levels. We find that none of the plans in our study satisfy the best practices that expert panels have established, and that the strength of a plan’s governance provisions does not appear correlated with a plan’s financial health. Our most important finding is that, regardless of the content of a plan’s governance provisions, such provisions are almost never effectively enforced. This lack of enforcement, we theorize, has a significant, detrimental impact on plan funding and governance. If neither plan participants nor state taxpayers are able to effectively monitor and challenge a state’s inadequate funding or improper investment decisions, public plans are very likely to remain underfunded. This Article concludes by offering several possible reform options to address the monitoring and enforcement problems made clear by our study: automatic benefit reductions, automatic tax increases, a low-risk investment requirement, and market monitoring through the use of modified pension obligation bonds
Who’s Afraid of Good Governance? State Fiscal Crises, Public Pension Underfunding, and the Resistance to Governance Reform
Much attention has been paid to the significant underfunding of many state and local employee pension plans, as well as to efforts by states and cities to alleviate that underfunding by modifying the benefits provided to workers. Yet relatively little attention has been paid to the systemic causes of such financial distress—such as chronic underfunding that shifts financial burdens to future taxpayers, and governance rules that may reduce the likelihood that a plan’s trustees will make optimal investment decisions. This Article presents the results of a qualitative study of the funding and governance provisions of twelve public pension plans that are a mix of state and local plans of various funding levels. We find that none of the plans in our study satisfy the best practices that expert panels have established, and that the strength of a plan’s governance provisions does not appear correlated with a plan’s financial health. Our most important finding is that, regardless of the content of a plan’s governance provisions, such provisions are almost never effectively enforced. This lack of enforcement, we theorize, has a significant, detrimental impact on plan funding and governance. If neither plan participants nor state taxpayers are able to effectively monitor and challenge a state’s inadequate funding or improper investment decisions, public plans are very likely to remain underfunded. This Article concludes by offering several possible reform options to address the monitoring and enforcement problems made clear by our study: automatic benefit reductions, automatic tax increases, a low-risk investment requirement, and market monitoring through the use of modified pension obligation bonds
Trust economics feasibility study
We believe that enterprises and other organisations currently lack sophisticated methods and tools to determine if and how IT changes should be introduced in an organisation, such that objective, measurable goals are met. This is especially true when dealing with security-related IT decisions. We report on a feasibility study, Trust Economics, conducted to demonstrate that such methodology can be developed. Assuming a deep understanding of the IT involved, the main components of our trust economics approach are: (i) assess the economic or financial impact of IT security solutions; (ii) determine how humans interact with or respond to IT security solutions; (iii) based on above, use probabilistic and stochastic modelling tools to analyse the consequences of IT security decisions. In the feasibility study we apply the trust economics methodology to address how enterprises should protect themselves against accidental or malicious misuse of USB memory sticks, an acute problem in many industries
What About Interaction Geography to Evaluate Physical Learning Spaces?
This paper reviews and explores how interaction geography, a new approach to visualize people’s interaction over space and time, extends current approaches to evaluate physical learning spaces. This chapter begins by reviewing representations produced using interaction geography to study visitor engagement and learning in a museum. In particular, this review illustrates Mondrian Transcription, a method to map people’s movement and conversation over space and time, and the Interaction Geography Slicer (IGS), a dynamic visualisation tool that supports new forms of interaction and multi-modal analysis. Subsequently, this chapter explores how interaction geography may advance the evaluation of physical learning spaces by providing dynamic information visualisation methods that support more expansive views of learning and the evaluation of the alignment between space and pedagogy. This chapter concludes by outlining significant limitations and next steps to expand interaction geography to evaluate physical learning spaces
The weak password problem: chaos, criticality, and encrypted p-CAPTCHAs
Vulnerabilities related to weak passwords are a pressing global economic and
security issue. We report a novel, simple, and effective approach to address
the weak password problem. Building upon chaotic dynamics, criticality at phase
transitions, CAPTCHA recognition, and computational round-off errors we design
an algorithm that strengthens security of passwords. The core idea of our
method is to split a long and secure password into two components. The first
component is memorized by the user. The second component is transformed into a
CAPTCHA image and then protected using evolution of a two-dimensional dynamical
system close to a phase transition, in such a way that standard brute-force
attacks become ineffective. We expect our approach to have wide applications
for authentication and encryption technologies.Comment: 5 pages, 6 figer
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The H-abc domain of syntaxin 3 is a ubiquitin binding domain
Syntaxins are a family of membrane-anchored SNARE proteins that are essential components required for membrane fusion in eukaryotic intracellular membrane trafficking pathways. Syntaxins contain an N-terminal regulatory domain, termed the H-abc domain that is not highly conserved at the primary sequence level but folds into a three-helix bundle that is structurally conserved among family members. The syntaxin H-abc domain has previously been found to be structurally very similar to the GAT domain present in GGA family members and related proteins that are otherwise completely unrelated to syntaxins. Because the GAT domain has been found to be a ubiquitin binding domain we hypothesized that the H-abc domain of syntaxins may also bind to ubiquitin. Here, we report that the H-abc domain of syntaxin 3 (Stx3) indeed binds to monomeric ubiquitin with low affinity. This domain binds efficiently to K63-linked poly-ubiquitin chains within a narrow range of chain lengths but not to K48-linked poly-ubiquitin chains. Other syntaxin family members also bind to K63-linked poly-ubiquitin chains but with different chain length specificities. Molecular modeling suggests that residues of the GGA3-GAT domain known to be important for ionic and hydrophobic interactions with ubiquitin may have equivalent, conserved residues within the H-abc domain of Stx3. We conclude that the syntaxin H-abc domain and the GAT domain are both structurally and functionally related, and likely share a common ancestry despite sequence divergence. Binding of Ubiquitin to the H-abc domain may regulate the function of syntaxins in membrane fusion or may suggest additional functions of this protein family
Performativity, fabrication and trust: exploring computer-mediated moderation
Based on research conducted in an English secondary school, this paper explores computer mediated moderation as a performative tool. The Module Assessment Meeting (MAM) was the moderation approach under investigation. I mobilise ethnographic data generated by a key informant, and triangulated with that from other actors in the setting, in order to examine some of the meanings underpinning moderation within a performative environment. Drawing on the work of Ball (2003), Lyotard (1979) and Foucault (1977, 1979), I argue that in this particular case performativity has become entrenched in teachers’ day-to-day practices, and not only affects those practices but also teachers’ sense of self. I suggest that MAM represented performative and fabricated conditions and (re)defined what the key participant experienced as a vital constituent of her educational identities - trust. From examining the case in point, I hope to have illustrated for those interested in teachers’ work some of the implications of the interface between technology and performativity
Exposure of U.S. National Parks to land use and climate change 1900-2100
Many protected areas may not be adequately safeguarding biodiversity from human activities on surrounding lands and global change. The magnitude of such change agents and the sensitivity of ecosystems to these agents vary among protected areas. Thus, there is a need to assess vulnerability across networks of protected areas to determine those most at risk and to lay the basis for developing effective adaptation strategies. We conducted an assessment of exposure of U.S. National Parks to climate and land use change and consequences for vegetation communities. We first defined park protected-area centered ecosystems (PACEs) based on ecological principles. We then drew on existing land use, invasive species, climate, and biome data sets and models to quantify exposure of PACEs from 1900 through 2100. Most PACEs experienced substantial change over the 20th century (.740% average increase in housing density since 1940, 13% of vascular plants are presently nonnative, temperature increase of 18C/100 yr since 1895 in 80% of PACEs), and projections suggest that many of these trends will continue at similar or increasingly greater rates (255% increase in housing density by 2100, temperature increase of 2.58–4.58C/100 yr, 30% of PACE areas may lose their current biomes by 2030). In the coming century, housing densities are projected to increase in PACEs at about 82% of the rate of since 1940. The rate of climate warming in the coming century is projected to be 2.5–5.8 times higher than that measured in the past century. Underlying these averages, exposure of individual park PACEs to change agents differ in important ways. For example, parks such as Great Smoky Mountains exhibit high land use and low climate exposure, others such as Great Sand Dunes exhibit low land use and high climate exposure, and a few such as Point Reyes exhibit high exposure on both axes. The cumulative and synergistic effects of such changes in land use, invasives, and climate are expected to dramatically impact ecosystem function and biodiversity in national parks. These results are foundational to developing effective adaptation strategies and suggest policies to better safeguard parks under broad-scale environmental change
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