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Statistical inference (estimation and testing) for the stochastic volatility (SV) model Taylor (1982, 1986) is challenging, especially likelihood-based methods which are difficult to apply due to the presence of latent variables. The existing methods are either computationally costly and/or inefficient. In this paper, we propose computationally simple estimators for the SV model, which are at the same time highly efficient. The proposed class of estimators uses a small number of moment equations derived from an ARMA representation associated with the SV model, along with the possibility of using “winsorization” to improve stability and efficiency. We call these ARMA-SV estimators. Closed-form expressions for ARMA-SV estimators are obtained, and no numerical optimization procedure or choice of initial parameter values is required. The asymptotic distributional theory of the proposed estimators is studied. Due to their computational simplicity, the ARMA-SV estimators allow one to make reliable – even exact – simulation-based inference, through the application of Monte Carlo (MC) test or bootstrap methods. We compare them in a simulation experiment with a wide array of alternative estimation methods, in terms of bias, root mean square error and computation time. In addition to confirming the enormous computational advantage of the proposed estimators, the results show that ARMA-SV estimators match (or exceed) alternative estimators in terms of precision, including the widely used Bayesian estimator. The proposed methods are applied to daily observations on the returns for three major stock prices (Coca-Cola, Walmart, Ford) and the S&P Composite Price Index (2000–2017). The results confirm the presence of stochastic volatility with strong persistence.

Sociology promotes and describes public health, helping to explain macro-social dynamics of mental health care through studies of organizations, networks, and systems of care.

This chapter summarizes sociological research on mental health care organizations and systems, illustrating a macro-social perspective by examining the problem of transitions in care for young adults. Summary findings from a regional mental health services research project describe a system of care that includes 100 organizations. This system helps young adults with mental health needs.

The scope and management of care involves a focus on modes of treatment supported by research evidence and delivered effectively by people with cultural competencies. Care and continuity of care are delivered through coordinated systems of inter-organizational networks, linking organizations and providers. Active inter-organizational linkages are needed to support mental health for young adults during challenging and sometimes difficult transitions.

This research summarizes original and regional data on mental health care organizations within a regional system of care. Practical implications include support for the importance of coordination, transition planning, and cultural competence within and among organizations. Sociological and original research on organizations and systems should continue to elaborate the needs and values of mental health services for regional planning and public health.

Purpose — This chapter considers how transport policy and planning has been developing in Victoria in tandem with the research program described elsewhere in this book. Developments in policy and planning are discussed with particular regard to transport disadvantage and social inclusion.

Methodology — The chapter commences by providing a policy and planning context in terms of the geography and demography of travel needs, the relevant jurisdictional responsibilities in Australia and the policy history. It then describes the evolution of transport policy in the past decade and outlines the way in which the findings of this research are being incorporated into the development of programs and projects to support social inclusion. Additionally, some key policy challenges are outlined, at least some of which may provide fruitful areas for undertaking further research to support the development of future policies and programs.

Findings — The results show that applied research can be a highly successful endeavour, particularly when policy and planning perspectives are integrated into the development of the research design and strong collaboration is an ongoing feature of the research program.

Consumers are faced with many new products. In almost every product category it is seen that there are more alternatives than provided in previous years. This situation may cause consumers to feel uncomfortable/uncertain, especially about new products. Therefore, since they perceive this uncertainty, customers want to be in control. Control is one of the ways to help customers to decide on perceived risky situations.

The main purpose of the study is to explain the effects of the risk and control drive on consumer behavior and determine how businesses reduce the risk that consumers feel.

It is critical for enterprises to increase their brand awareness in order to reduce consumers’ risk perceptions and increase their controls (cognitive, behavioral, and decision) during purchasing decisions. Also, it will be useful for them to focus on activities increasing brand loyalty. They can especially carry out marketing activities allowing consumers to try new products or providing money back guarantees. Moreover, in order to reduce the risk perception and increase control by the customers, making the promotional contents of the product understandable and simple without hidden factors will contribute in a positive way.

As a movement for alternative means of food production and consumption has grown, so, too, have civic efforts to make alternative food accessible to low-income persons (LIPs). This article examines the impact of alternative food institutions (AFIs) on low-income communities in the United States and Canada, focusing on research published since 2008.

Through a three-stage literature search, I created a database of 110 articles that make empirical or theoretical contributions to scholarly knowledge on the relationship of AFIs to low-income communities in North America. I used an in vivo coding scheme to categorize the impacts that AFIs have on LIPs and to identify predominant barriers to LIPs’ engagement with AFIs.

The impacts of AFIs span seven outcome categories: food consumption, food access and security, food skills, economic, other health, civic, and neighborhood. Economic, social and cultural barriers impede LIPs’ engagement with AFIs. AFIs can promote positive health outcomes for low-income persons when they meet criteria for affordability, convenience and inclusivity.

This review exposes productive avenues of dialogue between health scholars and medical sociology and geography/environmental sociology. Health scholarship offers empirical support for consumer-focused solutions. Conversely, by constructively critiquing the neoliberal underpinnings of AFIs’ discourse and structure, geographers and sociologists supply health scholars with a language that may enable more systemic interventions.

This article is the first to synthesize research on five categories of alternative food institutions (farmers’ markets, CSAs, community gardens, urban farms, and food cooperatives) across disciplinary boundaries.

This chapter provides a comprehensive review of several social-cognitive models that have been lately applied in public health and donation contexts. The current review included the elaboration likelihood model (ELM), the prototype willingness model (PWM), and the organ donation model (ODM). This review also details and discusses the main strengths and limitations of these models. Importantly, this review helps to identify the gap of the current social marketing and health-care literature. In particular, this chapter provides a solid theoretical foundation and has initiated further pathways for future researchers who are interested in the fields of public health and social change literature, organ donation context, as well as social-cognitive decision-making models. The significance of this review is defined by advancing public health practitioners, social marketing communicators, and educationalists, evidencing how conceptual models can inform and guide the research.