title: Navigating protection and presence: Trade-offs around data suppression for small Pacific populations

authors: Turner, Helen

subjects: data suppression

abstract: Introduction: Datasets, their analytics and their interpretation are key decision support tools for Pacific Island communities, with the potential to shape public policy, healthcare, and social interventions in the Pacific ‘Blue Continent’. However, in the case of numerically small island populations, privacy concerns have motivated widespread use of data suppression. While suppression safeguards privacy, it also risks erasing the visibility of these populations, leading to ‘statistical invisibility’ that obscures the social, health, and economic challenges. This study critically reviews the practice of data suppression, emphasizing its rationale in privacy protection, but also highlighting the impacts on resource allocation, advocacy, and equitable policy-making for Pacific populations.


Methods: We explored the rationale behind data suppression, and its legal and regulatory context. Using case studies including the U.S. Census Bureau, Centers for Disease Control and Behavioral Risk Factor Surveillance System, we assess the impact of suppression thresholds and privacy-preserving methods on Pacific Island communities. We present a novel analysis of data suppression impacts on ICD code suppression across different levels of geographical units in the Pacific to illustrate disproportionate impacts. We review alternative privacy-preserving methods, including data smoothing, statistical masking, and synthetic data generation, that could mitigate the effects of suppression without compromising individual privacy.


Finding and Conclusions: We recommend inclusive and transparent data practices needed to prevent data suppression compounding systemic marginalization of small Pacific populations. By critically evaluating current practices and proposing alternative strategies grounded in ‘Critical Data Theory’ and Pacific knowledge epistemology, this paper aims to inform policies that balance protection of individual privacy with the accurate representation of small, geographically dispersed populations.

text: Navigating protection and presence: Trade-offs around data suppression for small Pacific populations Introduction: Datasets, their analytics and their interpretation are key decision support tools for Pacific Island communities, with the potential to shape public policy, healthcare, and social interventions in the Pacific ‘Blue Continent’. However, in the case of numerically small island populations, privacy concerns have motivated widespread use of data suppression. While suppression safeguards privacy, it also risks erasing the visibility of these populations, leading to ‘statistical invisibility’ that obscures the social, health, and economic challenges. This study critically reviews the practice of data suppression, emphasizing its rationale in privacy protection, but also highlighting the impacts on resource allocation, advocacy, and equitable policy-making for Pacific populations.


Methods: We explored the rationale behind data suppression, and its legal and regulatory context. Using case studies including the U.S. Census Bureau, Centers for Disease Control and Behavioral Risk Factor Surveillance System, we assess the impact of suppression thresholds and privacy-preserving methods on Pacific Island communities. We present a novel analysis of data suppression impacts on ICD code suppression across different levels of geographical units in the Pacific to illustrate disproportionate impacts. We review alternative privacy-preserving methods, including data smoothing, statistical masking, and synthetic data generation, that could mitigate the effects of suppression without compromising individual privacy.


Finding and Conclusions: We recommend inclusive and transparent data practices needed to prevent data suppression compounding systemic marginalization of small Pacific populations. By critically evaluating current practices and proposing alternative strategies grounded in ‘Critical Data Theory’ and Pacific knowledge epistemology, this paper aims to inform policies that balance protection of individual privacy with the accurate representation of small, geographically dispersed populations.

year: 2025

title: Local FinTech development and stock price crash risk

authors: Wang, Xinyue

abstract: This study investigates the effect of financial technology (FinTech) development on stock price crash risk. We show that the development of FinTech can inhibit management from deliberately hiding bad news and alleviate information asymmetry, thereby reducing stock price crash risk. This effect is more pronounced among non-state-owned enterprises, firms with poor information environments and low-quality internal controls, and those in competitive industries and regions with high marketization. Overall, these findings suggest that FinTech development can mitigate the deliberate concealment of bad news by management and improve the timeliness of disclosure, leading to lower risks faced by investors.

text: Local FinTech development and stock price crash risk This study investigates the effect of financial technology (FinTech) development on stock price crash risk. We show that the development of FinTech can inhibit management from deliberately hiding bad news and alleviate information asymmetry, thereby reducing stock price crash risk. This effect is more pronounced among non-state-owned enterprises, firms with poor information environments and low-quality internal controls, and those in competitive industries and regions with high marketization. Overall, these findings suggest that FinTech development can mitigate the deliberate concealment of bad news by management and improve the timeliness of disclosure, leading to lower risks faced by investors.

year: 2023-05

title: Mai ngā reo pou tangata

authors: Nathan, Lisa Kiriwai

subjects: Maori

abstract: Globally the prevalence rate of dementia is estimated to be 50 million.  In 2016, Aotearoa New Zealand prevalence projections reported 62,287 people were affected by dementia.  Māori represented 5.1 per cent, which is expected to rise to 8 per cent by 2038.  Māori people prefer to care for ill kaumātua (older people) at home and are experiencing greater stress and increased caregiver burden due to the cultural expectations of caring for kaumātua at home.  The two aims of this study were first, to explore the perspectives of Māori whānau carers caring for kaumātua with dementia, and the second aim was to explore the perspectives of staff who work for dementia service providers, addressing areas such as staff’s experiences with Māori whānau carers and cultural competency in service delivery.
	Semi-structured interviews were conducted with eight whānau (11 whānau carers) within the Waikato region of New Zealand and seven service provider staff participants. Whānau carers were interviewed first.  They were asked to share information about their kaumātua.  The topics explored the diagnosis process; the behavioural changes of the kaumātua living with dementia and the whānau caring experience.  Thematic analysis was conducted on the resulting transcripts to identify themes and to identify potential service providers to approach for interviews.  Five service provider organisations were selected, of which four service providers were able to commit to an interview.  One service provider could not commit to an interview due to thesis time constraints. Seven staff participants across the four service providers were recruited and invited to share their perspectives of working with Māori whānau.  Again, thematic analysis was conducted on the verbatim transcripts to identify salient themes.
	Two major findings amidst the perspectives of whānau carers was identified.  First, the systemic lack of support across three dimensions, and second the negative impact of caregiver burden. The first deficiency was the lack of support from whānau members, second, the lack of support from community services and third, the lack of support from the government.  Whānau experienced poor health as a result of caregiver burden. Staff participants findings were firstly staff believed they were culturally inclusive and responsive, second they reported going beyond their roles and the system to support Māori and third staff identified barriers which exist for Māori in terms of accessing services.
	Whānau carers are struggling to find support from other whānau members.  Some whānau members are critical of caring methods, while others place additional burden on the carers.  Whānau are often described as an interconnected unit, however findings show that Māori whānau carers are feeling isolated and alone, and as a result are experiencing poor health. 
	Whānau carers perceive a services in their community as not being culturally inclusive or appropriate.  Staff participants said that they incorporate respect and compassion into their service delivery.  Staff recognise that the numbers of Māori represented at services are low, compared to non-Māori clients.  Services need to be integrate cultural training on a regular basis to ensure Māori are comfortable with being Māori in service settings.

text: Mai ngā reo pou tangata Globally the prevalence rate of dementia is estimated to be 50 million.  In 2016, Aotearoa New Zealand prevalence projections reported 62,287 people were affected by dementia.  Māori represented 5.1 per cent, which is expected to rise to 8 per cent by 2038.  Māori people prefer to care for ill kaumātua (older people) at home and are experiencing greater stress and increased caregiver burden due to the cultural expectations of caring for kaumātua at home.  The two aims of this study were first, to explore the perspectives of Māori whānau carers caring for kaumātua with dementia, and the second aim was to explore the perspectives of staff who work for dementia service providers, addressing areas such as staff’s experiences with Māori whānau carers and cultural competency in service delivery.
	Semi-structured interviews were conducted with eight whānau (11 whānau carers) within the Waikato region of New Zealand and seven service provider staff participants. Whānau carers were interviewed first.  They were asked to share information about their kaumātua.  The topics explored the diagnosis process; the behavioural changes of the kaumātua living with dementia and the whānau caring experience.  Thematic analysis was conducted on the resulting transcripts to identify themes and to identify potential service providers to approach for interviews.  Five service provider organisations were selected, of which four service providers were able to commit to an interview.  One service provider could not commit to an interview due to thesis time constraints. Seven staff participants across the four service providers were recruited and invited to share their perspectives of working with Māori whānau.  Again, thematic analysis was conducted on the verbatim transcripts to identify salient themes.
	Two major findings amidst the perspectives of whānau carers was identified.  First, the systemic lack of support across three dimensions, and second the negative impact of caregiver burden. The first deficiency was the lack of support from whānau members, second, the lack of support from community services and third, the lack of support from the government.  Whānau experienced poor health as a result of caregiver burden. Staff participants findings were firstly staff believed they were culturally inclusive and responsive, second they reported going beyond their roles and the system to support Māori and third staff identified barriers which exist for Māori in terms of accessing services.
	Whānau carers are struggling to find support from other whānau members.  Some whānau members are critical of caring methods, while others place additional burden on the carers.  Whānau are often described as an interconnected unit, however findings show that Māori whānau carers are feeling isolated and alone, and as a result are experiencing poor health. 
	Whānau carers perceive a services in their community as not being culturally inclusive or appropriate.  Staff participants said that they incorporate respect and compassion into their service delivery.  Staff recognise that the numbers of Māori represented at services are low, compared to non-Māori clients.  Services need to be integrate cultural training on a regular basis to ensure Māori are comfortable with being Māori in service settings.

year: 2019