The DUSP domain of pseudophosphatase MK-STYX interacts with G3BP1 to decrease stress granules.

Mitogen activated protein kinase phosphoserine/threonine/tyrosine-binding protein (MK-STYX) is a dual specificity (DUSP) member of the protein tyrosine phosphatase family. It is a pseudophosphatase, which lacks the essential amino acids histidine and cysteine in the catalytic active signature motif (HCX5R). We previously reported that MK-STYX interacts with G3BP1 [Ras-GAP (GTPase-activating protein) SH3 (Src homology 3) domain-binding-1] and reduces stress granules, stalled mRNA. To determine how MK-STYX reduces stress granules, truncated domains, CH2 (cell division cycle 25 phosphatase homology 2) and DUSP, of MK-STYX were used. Wild-type MK-STYX and the DUSP domain significantly decreased stressed granules that were induced by sodium arsenite, in which G3BP1 (a stress granule nucleator) was used as the marker. In addition, HEK/293 and HeLa cells co-expressing G3BP1-GFP and mCherry-MK-STYX, mCherry-MK-STYX-CH2, mCherry-MK-STYX-DUSP or mCherry showed that stress granules were significantly decreased in the presence of wild-type MK-STYX and the DUSP domain of MK-STYX. Further characterization of these dynamics in HeLa cells showed that the CH2 domain increased the number of stress granules within a cell, relative to wild-type and DUSP domain of MK-STYX. To further analyze the interaction of G3BP1 and the domains of MK-STYX, coimmunoprecipitation experiments were performed. Cells co-expressing G3BP1-GFP and mCherry, mCherry-MK-STYX, mCherry-MK-STYX-CH2, or mCherry-MK-STYX-DUSP demonstrated that the DUSP domain of MK-STYX interacts with both G3BP1-GFP and endogenous G3BP1, whereas the CH2 domain of MK-STYX did not coimmunoprecipitate with G3BP1. In addition, G3BP1 tyrosine phosphorylation, which is required for stress granule formation, was decreased in the presence of wild-type MK-STYX or the DUSP domain but increased in the presence of CH2. These data highlight a model for how MK-STYX decreases G3BP1-induced stress granules. The DUSP domain of MK-STYX interacts with G3BP1 and negatively alters its tyrosine phosphorylation- decreasing stress granule formation.

Income Trajectories in Later Life: Longitudinal Evidence from the Health and Retirement Study.

We track low-income respondents in the longitudinal Health and Retirement Study for 23 years, to observe how their financial situations unfolded as they aged. We document that (a) real incomes remained relatively stable as individuals entered retirement and progressed through their later years; and (b) labor force participation declined and thus earnings became less important with age, while Social Security and retirement savings rose as a proportion of annual income. Low-income people near retirement also tended to fare poorly during retirement.

'It's a cultural thing': excuses used by health professionals on providing inclusive care.

Although health services in Australia have an aim to provide inclusive care for their patients/clients, this study highlights how barriers to care can lie at the centre of patient-provider interactions. Racial microaggression is a subtle form of racism that can occur in health settings, leading to further exclusion for First Nations Australians, immigrants and refugees. This paper is guided by Derrida's approach to deconstructionism by unpacking how language is used by health professionals - as holders of organisational power - and how they construct 'truths' or discourses about clients that historically have been marginalised by health services and system. Data comprise 21 interviews with staff from two rural health services. It identified three racial microaggressions were used to justify the challenges of providing care to people from First Nations, immigrant and refugee backgrounds: (1) Participants problematised culture(s) of service users; (2) participants implied cultural superiority in their conceptualisation of 'other' cultures; and (3) participants shared stories of inactions, discomfort and relegating of responsibility. The findings identified these discourses as forms of racial microaggression that can potentially lead to further exclusion of people seeking services and support.

Building readiness for inclusive practice in mainstream health services: A pre-inclusion framework to deconstruct exclusion.

Across the globe, people are not equitably included or respected by health services. This results in some people being 'hardly reached' and having less access to safe and appropriate care. While some health services have adopted specific agendas to increase inclusion, these services can struggle to implement such strategies because the underlying reasons for exclusion have not been addressed. This calls for preparation prior to implementation of inclusion approaches that deconstructs discourses and practices of exclusion. This paper presents a pre-inclusion framework that seeks to deconstruct exclusion in health services. Authors developed this framework from action research in four 'mainstream' regional health services in southeast Australia over five years. Research identified dominant discourses of exclusion among staff in these services. The study also identified common experiences of residents hardly reached by these services. Following, a range of change activities were undertaken within these services to deconstruct exclusion. Researchers also kept journals, reflected on their impact, and identified lessons learned from trying to deconstruct exclusion. Triangulating these analyses, researchers developed an interdisciplinary framework that weaves together Foucauldian theory on power/discourse with continuous quality improvement processes to embed cultural humility and voices of the hardly reached in health care. The framework outlines five foundational concepts (power as productive, deconstruction, use of continuous quality improvement processes, cultural humility and voices of service users), followed by six principles (a journey, expect resistance, whole of service approach, make visible the reasons for change, we are all cultural beings and people centred care) and six actions undertaken within health services (commitment, assessment of exclusion, action plans, structural change, reflective discussions and engagement). Until such approaches to deconstruct exclusion are implemented, inclusive agendas are likely to be ineffective.

How Financial Literacy Shapes the Demand for Financial Advice at Older Ages.

We investigate how financial literacy shapes older Americans' demand for financial advice. Using an experimental module fielded in the Health and Retirement Study, we show that financial literacy strongly improves the quality but not the quantity of financial advice sought. In particular, more financially literate people seek financial help from professionals. This effect is more pronounced among older people and those with more wealth and more complex financial positions. Our analysis result implies that financial literacy and financial advisory services are complementary with, rather than substitutes for, each other.

A qualitative evaluation of the implementation of a cultural competence project in rural Victoria.

OBJECTIVE: To explore the complex factors influencing the implementation of cultural competency frameworks for Aboriginal and Torres Strait Islander peoples within rural, Victorian, mainstream health and community service organisations. METHODS: Semi-structured telephone interviews were conducted with key individuals from 20 public health and community services in rural Victoria who had participated in the Koolin Balit Aboriginal Health Cultural Competence Project (KB-AHCC project). Interviews were recorded and transcribed verbatim and a content analysis was undertaken. The findings informed the selection of six case study sites for more in-depth analysis. Following this, an expert reference group provided feedback on the findings. Findings from the different data were triangulated to identify eight factors. RESULTS: Key factors acting as barriers and/or enablers to implementing cultural competence frameworks were: comprehensive, structured tools; project workers; communication; organisational responsibility for implementation; prioritising organisational cultural competence resourcing; resistance to focussing on one group of people; and accountability. CONCLUSIONS: Embedding cultural competence frameworks within rural, mainstream health and community services requires sustained government resourcing, prioritisation and formal accountability structures. Implications for public health: Findings will inform and guide the future development, implementation and evaluation of organisational cultural competence projects for rural public health and community services.

Older Peoples' Willingness to Delay Social Security Claiming.

We have designed and implemented an experimental module in the 2014 Health and Retirement Study (HRS) to measure older persons' willingness to defer claiming of Social Security benefits. Under the current system' status quo where delaying claiming boosts eventual benefits, we show that 46% of the respondents would delay claiming and work longer. If respondents were instead offered an actuarially fair lump sum payment instead of higher lifelong benefits, about 56% indicate they would delay claiming. Without a work requirement, the average amount needed to induce delayed claiming is only $60,400, while when part-time work is stipulated, the amount is slightly higher, $66,700. This small difference implies a low utility value of leisure foregone, of under 20% of average household income.

How Financial Literacy and Impatience Shape Retirement Wealth and Investment Behaviors.

Two competing explanations for why consumers have trouble with financial decisions are gaining momentum. One is that people are financially illiterate since they lack understanding of simple economic concepts and cannot carry out computations such as computing compound interest, which could cause them to make suboptimal financial decisions. A second is that impatience or present-bias might explain suboptimal financial decisions. That is, some people persistently choose immediate gratification instead of taking advantage of larger long-term payoffs. We use experimental evidence from Chile to explore how these factors appear related to poor financial decisions. Our results show that our measure of impatience is a strong predictor of wealth and investment in health. Financial literacy is also correlated with wealth though it appears to be a weaker predictor of sensitivity to framing in investment decisions. Policymakers interested in enhancing retirement wellbeing would do well to consider the importance of both factors.

Financial Fraud Among Older Americans: Evidence and Implications.

OBJECTIVES: The consequences of poor financial capability at older ages are serious and include making mistakes with credit, spending retirement assets too quickly, and being defrauded by financial predators. Because older persons are at or past the peak of their wealth accumulation, they are often the targets of fraud. METHODS: Our project analyzes a module we developed and fielded on people aged 50 an older years in the 2016 Health and Retirement Study (HRS). Using this data set, we evaluated the incidence and prospective risk factors (measured in 2010) for investment fraud and prize/lottery fraud using logistic regression (N = 1,220). RESULTS: Relatively few HRS respondents mentioned any single form of fraud over the prior 5 years, but 5.0% reported at least one form of investment fraud and 4.4% recounted prize/lottery fraud. Greater wealth (nonhousing) was associated with investment fraud, whereas lower housing wealth and symptoms of depression were associated with prize/lottery fraud. Hispanics were significantly less likely to report either type of fraud. Other suspected risk factors-low social integration and financial literacy-were not significant. DISCUSSION: Fraud is a complex phenomenon and no single factor uniquely predicts victimization across different types, even within the category of investment fraud. Prevention programs should educate consumers about various types of fraud and increase awareness among financial services professionals.

Time Discounting and Economic Decision-making in the Older Population.

This paper examines heterogeneity in time discounting among a representative sample of elderly Americans, as well as its role in explaining key economic behaviors at older ages. We show how older Americans evaluate simple (hypothetical) inter-temporal choices in which payments today are compared with payments in the future. Using the indicators derived from this measure, we then demonstrate that differences in discounting patterns are associated with characteristics of particular importance in elderly populations. For example, cognitive deficits are associated with greater impatience, whereas bequest motives are associated with less impatience. We then relate our discounting measure to key economic outcomes and find that impatience is associated with lower wealth, fewer investments in health, and less planning for end of life care.

A modified Continuous Quality Improvement approach to improve culturally and socially inclusive care within rural health services.

BACKGROUND: The sickest Australians are often those belonging to non-privileged groups, including Indigenous Australians, gay, lesbian, bisexual, transsexual, intersex and queer people, people from culturally and linguistically diverse backgrounds, socioeconomically disadvantaged groups, and people with disabilities and low English literacy. These consumers are not always engaged by, or included within, mainstream health services, particularly in rural Australia where health services are limited in number and tend to be generalist in nature. OBJECTIVE: The aim of this study was to present a new approach for improving the sociocultural inclusivity of mainstream, generalist, rural, health care organisations. DESIGN: This approach combines a modified Continuous Quality Improvement framework with Participatory Action Research principles and Foucault's concepts of power, discourse and resistance to develop a change process that deconstructs the power relations that currently exclude marginalised rural health consumers from mainstream health services. It sets up processes for continuous learning and consumer responsiveness. RESULTS: The approach proposed could provide a Continuous Quality Improvement process for creating more inclusive mainstream health institutions and fostering better engagement with many marginalised groups in rural communities to improve their access to health care. CONCLUSION: The approach to improving cultural inclusion in mainstream rural health services presented in this article builds on existing initiatives. This approach focuses on engaging on-the-ground staff in the need for change and preparing the service for genuine community consultation and responsive change. It is currently being trialled and evaluated.

Optimal Financial Knowledge and Wealth Inequality.

We show that financial knowledge is a key determinant of wealth inequality in a stochastic lifecycle model with endogenous financial knowledge accumulation, where financial knowledge enables individuals to better allocate lifetime resources in a world of uncertainty and imperfect insurance. Moreover, because of how the U.S. social insurance system works, better-educated individuals have most to gain from investing in financial knowledge. Our parsimonious specification generates substantial wealth inequality relative to a one-asset saving model and one where returns on wealth depend on portfolio composition alone. We estimate that 30-40 percent of retirement wealth inequality is accounted for by financial knowledge.

BORROWING FROM THE FUTURE? 401(K) PLAN LOANS AND LOAN DEFAULTS.

Most employers permit 401(k) plan participants to borrow from their retirement plan assets. Using an administrative dataset tracking over 800 plans for five years, we show that 20 percent of workers borrow at any given time, and almost 40 percent borrow at some point over five years. Also, workers borrow more when a plan permits multiple loans. Ninety percent of loans are repaid, but 86 percent of workers changing jobs with a loan default on the outstanding balance. We estimate that $5 billion per year in defaulted plan loans generate federal revenues of $1 billion annually, more than previously thought.

Assessing the Demand for Micropensions among India's Poor.

Using new data from a field experiment in India, we test hypotheses about micropension design in a poor population. We elicit demand for the basic micropension in addition to variants with different minimum withdrawal ages, government match rates, and options for lump sum withdrawal. A majority (80%) of respondents report interest in the micropension, and the amount they are willing to contribute would be enough to cover about 40% of expected old-age consumption. We find that prospective policyholders value the inability to access the assets until a particular age. We also find that they respond positively to the government match rate.

TLR and TNF-R1 activation of the MKK3/MKK6-p38α axis in macrophages is mediated by TPL-2 kinase.

Previous studies suggested that Toll-like receptor (TLR) stimulation of the p38α MAP kinase (MAPK) is mediated by transforming growth factor-ß-activated kinase 1 (TAK1) activation of MAPK kinases, MKK3, MKK4 and MKK6. We used quantitative mass spectrometry to monitor tumour progression locus 2 (TPL-2)-dependent protein phosphorylation following TLR4 stimulation with lipopolysaccharide, comparing macrophages from wild-type mice and Map3k8(D270A/D270A) mice expressing catalytically inactive TPL-2 (MAP3K8). In addition to the established TPL-2 substrates MKK1/2, TPL-2 kinase activity was required to phosphorylate the activation loops of MKK3/6, but not of MKK4. MKK3/6 activation required IκB kinase (IKK) phosphorylation of the TPL-2 binding partner nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB1) p105, similar to MKK1/2 activation. Tumour necrosis factor (TNF) stimulation of MKK3/6 phosphorylation was similarly dependent on TPL-2 catalytic activity and IKK phosphorylation of NF-κB1 p105. Owing to redundancy of MKK3/6 with MKK4, Map3k8(D270A) mutation only fractionally decreased lipopolysaccharide activation of p38α. TNF activation of p38α, which is mediated predominantly via MKK3/6, was substantially reduced. TPL-2 catalytic activity was also required for MKK3/6 and p38α activation following macrophage stimulation with Mycobacterium tuberculosis and Listeria monocytogenes Our experiments demonstrate that the IKK/NF-κB1 p105/TPL-2 signalling pathway, downstream of TAK1, regulates MKK3/6 and p38α activation in macrophages in inflammation.

Time is money: Rational life cycle inertia and the delegation of investment management.

Many households display inertia in investment management over their life cycles. Our calibrated dynamic life cycle portfolio choice model can account for such an apparently 'irrational' outcome, by incorporating the fact that investors must forgo acquiring job-specific skills when they spend time managing their money, and their efficiency in financial decision making varies with age. Resulting inertia patterns mesh well with findings from prior studies and our own empirical results from Panel Study of Income Dynamics (PSID) data. We also analyze how people optimally choose between actively managing their assets versus delegating the task to financial advisors. Delegation proves valuable to both the young and the old. Our calibrated model quantifies welfare gains from including investment time and money costs as well as delegation in a life cycle setting.

Framing and Claiming: How Information-Framing Affects Expected Social Security Claiming Behavior.

This paper provides evidence that Social Security benefit claiming decisions are strongly affected by framing and are thus inconsistent with expected utility theory. Using a randomized experiment that controls for both observable and unobservable differences across individuals, we find that the use of a "breakeven analysis" encourages early claiming. Respondents are more likely to delay when later claiming is framed as a gain, and the claiming age is anchored at older ages. Additionally, the financially less literate, individuals with credit card debt, and those with lower earnings are more influenced by framing than others.

How Family Status and Social Security Claiming Options Shape Optimal Life Cycle Portfolios.

We show how optimal household decisions regarding work, retirement, saving, portfolio allocations, and life insurance are shaped by the complex financial options embedded in U.S. Social Security rules and uncertain family transitions. Our life cycle model predicts sharp consumption drops on retirement, an age-62 peak in claiming rates, and earlier claiming by wives versus husbands and single women. Moreover, life insurance is mainly purchased on men's lives. Our model, which takes Social Security rules seriously, generates wealth and retirement outcomes that are more consistent with the data, in contrast to earlier and less realistic models.

Ambiguity aversion and household portfolio choice puzzles: Empirical evidence.

We test the relation between ambiguity aversion and five household portfolio choice puzzles: nonparticipation in equities, low allocations to equity, home-bias, own-company stock ownership, and portfolio under-diversification. In a representative US household survey, we measure ambiguity preferences using custom-designed questions based on Ellsberg urns. As theory predicts, ambiguity aversion is negatively associated with stock market participation, the fraction of financial assets in stocks, and foreign stock ownership, but it is positively related to own-company stock ownership. Conditional on stock ownership, ambiguity aversion is related to portfolio under-diversification, and during the financial crisis, ambiguity-averse respondents were more likely to sell stocks.

Estimating ambiguity preferences and perceptions in multiple prior models: Evidence from the field.

We develop a tractable method to estimate multiple prior models of decision-making under ambiguity. In a representative sample of the U.S. population, we measure ambiguity attitudes in the gain and loss domains. We find that ambiguity aversion is common for uncertain events of moderate to high likelihood involving gains, but ambiguity seeking prevails for low likelihoods and for losses. We show that choices made under ambiguity in the gain domain are best explained by the α-MaxMin model, with one parameter measuring ambiguity aversion (ambiguity preferences) and a second parameter quantifying the perceived degree of ambiguity (perceptions about ambiguity). The ambiguity aversion parameter α is constant and prior probability sets are asymmetric for low and high likelihood events. The data reject several other models, such as MaxMin and MaxMax, as well as symmetric probability intervals. Ambiguity aversion and the perceived degree of ambiguity are both higher for men and for the college-educated. Ambiguity aversion (but not perceived ambiguity) is also positively related to risk aversion. In the loss domain, we find evidence of reflection, implying that ambiguity aversion for gains tends to reverse into ambiguity seeking for losses. Our model's estimates for preferences and perceptions about ambiguity can be used to analyze the economic and financial implications of such preferences.