The impact of climate variability and change on cryptosporidiosis and giardiasis rates in New Zealand

Aim: To investigate the spatial relationship between climate variability and cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006.

Methods: Negative binomial regression was used to analyse spatial relationships between cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006, and climatological average rainfall and temperature at the Census Area Unit (CAU) level. The quality of domestic water supplies, urban-rural status and deprivation were included as covariates.

Main results: Giardiasis: There was a positive association between rainfall and giardiasis and between temperature and giardiasis.

Cryptosporidiosis: There was a positive association between rainfall and cryptosporidiosis and a negative association between temperature and cryptosporidiosis. The effect of rainfall was modified by the quality of the domestic water supply.

Conclusions: These findings suggest that climate variability affects protozoan disease rates in New Zealand. However, predicting the effect of climate change from this study is difficult, as these results suggest that the projected increases in temperature and rainfall may have opposing effects on cryptosporidiosis rates. Nevertheless, water supply quality appeared to modify the impact of increased rainfall on cryptosporidiosis rates. This finding suggests that improving water supply quality in New Zealand could reduce vulnerability to the impact of climate change on protozoan diseases.

Do service and merchandise exporters behave and perform differently? : a New Zealand investigation

Research on export behaviour and the determinants of export performance of manufacturing firms abounds in the literature. By contrast relatively little research has been undertaken that focuses on service exporters despite the growing importance of service exports in most advanced industrialised countries. This paper compares the export behaviour and performance of service firms to those of manufacturing firms. The study is based on a survey of 155 small and medium size exporters from New Zealand. The results suggest that service exporters are distinctively unique in many respects and exhibit export behaviours that are different from exporters of merchandise. Generally, service firms have greater flexibility to adapt their products to the specific requirements of their customers, use direct export channels more often and are also more proactive than merchandise firms in the establishment of future export strategies. Overall, the size and commitment of service exporters have the greatest influence on their performance.

The impact of guanxi on export performance: A study of New Zealand firms exporting to China

Broadly defined as interpersonal relationship in Chinese society, guanxi embodies several intricate and unique Chinese cultural values. Although more and more western business people are becoming increasingly aware of the importance of guanxi in doing business in China, its potential impacts on the performance of business are still not well understood by western business people. This paper uses path analysis to assess the impacts of guanxi on export performance of a sample of New Zealand firms exporting to China. The results show that guanxi variables significantly facilitate trade partnering, business negotiating, and problem solving and generally contributes positively to the overall export performance of firms.

Insuring for a crisis: deposit insurance and the GFC, the Australian and New Zealand experience

Deposit insurance schemes were an important element in policy responses to the global financial crisis (GFC). There has been considerable debate about the nature and efficacy of such policy measures in alleviating the fallout from financial crises. The GFC highlighted problems associated with deposit insurance schemes including moral hazard, coverage limits, co-insurance, cross border issues and market distortions. Despite these shortcomings, deposit insurance schemes were able to ameliorate the financial panic experienced and reduce contagion. This paper evaluates the Australian and New Zealand experience with deposit insurance introduced in response to the GFC, and compares this to the OECD experience. It reflects on the performance of deposit insurance schemes considered against the attributes of good policy design, and evaluates the specific problems and strengths encountered during the GFC.

Effectiveness of e-recruiting : empirical evidence from the Rosebank business cluster in Auckland, New Zealand

This article focuses on the background of the 'conventional' or 'old' way of recruiting, it reviews different 'new' ways; e-recruiting and its effectiveness; advantages such as accessibility and disadvantages such as transgression of some legislation in e-recruiting and the impact it has on management. Face-to-face interviews were conducted with 102 companies within that population. A 36- question questionnaire was used and we employed random stratified cluster sampling. Research done in Auckland's Rosebank Business Precinct (New Zealand) revealed that for certain job categories e-recruitment is effective. E-recruitment is revolutionising the way employers hire employees. Some implications for managers are pointed out such as the need to be trained for these changes; it can save a lot of money on advertisements; the savings could be used to develop careers or training for employees. The recommendations suggest that the HR objectives have to align with the organisational objectives to ensure that they recruit, select and employ the right candidate for the right job. A flow diagram for e-recruiting was developed by the authors for use by employers.

Health care and lost productivity costs of overweight and obesity in New Zealand

Objective: To estimate the costs of health care and lost productivity attributable to overweight and obesity in New Zealand (NZ) in 2006.

Methods: A prevalence-based approach to costing was used in which costs were calculated for all cases of disease in the year 2006. Population attributable fractions (PAFs) were calculated based on the relative risks obtained from large cohort studies and the prevalence of overweight and obesity. For each disease, the PAF was multiplied by the total health care cost. The costs of lost productivity associated with premature mortality were estimated using both the Human Capital approach (HCA) and Friction Cost approach (FCA).

Results: Health care costs attributable to overweight and obesity were estimated to be NZ$686m or 4.5% of New Zealand's total health care expenditure in 2006. The costs of lost productivity using the FCA were estimated to be NZ$98m and NZ$225m using the HCA. The combined costs of health care and lost productivity using the FCA were $784m and $911m using the HCA.

Conclusion: The cost burden of overweight and obesity in NZ is considerable.

Implications: Policies and interventions are urgently needed to reduce the prevalence of obesity thereby decreasing these substantial costs.

Risk factors, microbiological findings and outcomes of necrotizing fasciitis in New Zealand: a retrospective chart review

Background
The incidence and mortality from necrotizing fasciitis (NF) are increasing in New Zealand (NZ). Triggered by a media report that traditional Samoan tattooing was causing NF, we conducted a chart review to investigate the role of this and other predisposing and precipitating factors and to document NF microbiology, complications and interventions in NZ.

Methods
We conducted a retrospective review of 299 hospital charts of patients discharged with NF diagnosis codes in eight hospitals in NZ between 2000 and 2006. We documented and compared by ethnicity the prevalence of predisposing and precipitating conditions, bacteria isolated, complications and interventions used.

Results
Out of 299 charts, 247 fulfilled the case definition. NF was most common in elderly males. Diabetes was the most frequent co-morbid condition, followed by obesity. Nearly a quarter of patients were taking non-steroidal anti-inflammatory drugs (NSAID). Traditional Samoan tattooing was an uncommon cause. Streptococcus pyogenes and Staphylococcus aureus were the two commonly isolated bacteria. Methicillin-resistant Staphylococcus aureus was implicated in a relatively small number of cases. Shock, renal failure, coagulation abnormality and multi-organ dysfunction were common complications. More than 90% of patients underwent surgical debridement, 56% were admitted to an intensive care unit (ICU) and slightly less than half of all patients had blood product transfusion. One in six NF cases had amputations and 23.5% died.

Conclusion
This chart review found that the highest proportion of NF cases was elderly males with co-morbidities, particularly diabetes and obesity. Tattooing was an uncommon precipitating event. The role of NSAID needs further exploration. NF is a serious disease with severe complications, high case fatality and considerable use of health care resources.