title: Editorial: Grammar in the face of diversity

authors: Locke, Terry

subjects: grammar

abstract: The river one dips one’s toes into from one editorial to the next is never the same, as Heraclitus might have observed. Part 1 of this double issue (December, 2005) consisted of eight articles from contributors based in five countries: the United States, England, New Zealand, South Africa and Canada. Part 2 contains six articles and two teacher narratives from the United States (two), Scotland, the Netherlands, Australia (2), Indonesia and Denmark. The inclusion of contributors from European countries outside of the United Kingdom is a reminder that debates over the “grammar” question are not confined to the Anglophonic world. I am grateful to Amos van Gelderen and Anette Wulff for finding time to contribute to a journal, which hitherto has addressed itself to readers in a relatively small range of (officially) English speaking constituencies. I am also grateful to Handoyo Widodo for his contribution, written in the context of English-language teaching in Indonesia.

text: Editorial: Grammar in the face of diversity The river one dips one’s toes into from one editorial to the next is never the same, as Heraclitus might have observed. Part 1 of this double issue (December, 2005) consisted of eight articles from contributors based in five countries: the United States, England, New Zealand, South Africa and Canada. Part 2 contains six articles and two teacher narratives from the United States (two), Scotland, the Netherlands, Australia (2), Indonesia and Denmark. The inclusion of contributors from European countries outside of the United Kingdom is a reminder that debates over the “grammar” question are not confined to the Anglophonic world. I am grateful to Amos van Gelderen and Anette Wulff for finding time to contribute to a journal, which hitherto has addressed itself to readers in a relatively small range of (officially) English speaking constituencies. I am also grateful to Handoyo Widodo for his contribution, written in the context of English-language teaching in Indonesia.

year: 2006

title: The Non-Market Value of Biodiversity Enhancement in New Zealand's Planted Forests

authors: Yao, Richard

subjects: non-market value

abstract: This study investigates the non-market value of biodiversity enhancement in New Zealand’s planted forests using the stated choice experiments (CE) approach. This study focuses on two issues. One issue is policy orientated where we estimate the non-market value of biodiversity enhancement and the determinants of this value. The other issue is about the neutrality of major experimental design criteria used in CE. Specifically, we examine the impact of using different criteria on attribute non-attendance, choice variability, choice determinism and learning. 

To estimate the non-market value of biodiversity enhancement, a random parameters logit model with error components is used to analyse choice data collected from 209 respondents across New Zealand. The panel nature of the choice data set is exploited to calculate the marginal willingness-to-pay (WTP) for environmental attributes of each respondent. Panel random-effects regression models are subsequently employed to determine the factors that influence individual-specific WTP values. Results suggest that New Zealand taxpayers would be willing to pay $26.5 million per year for five years for a proposed biodiversity enhancement programme. Random effects regression analysis suggest that respondents living close to large planted forests (i.e., less than 10 kilometres away) would pay more for the programme. 

To study whether the selection of experimental design criterion affects attribute non-attendance and choice variability, we analyse a balanced sample with split designs. The balanced sample is composed of 1509 choice observations equally distributed across three experimental designs, namely: orthogonal, Bayesian D-efficient and optimal orthogonal. Results from latent class logit analysis suggest that tasks derived from the Bayesian D-efficient design (BDD) criterion are more attended than those derived from orthogonal and optimal orthogonal designs. Heteroskedastic logit analysis indicates that, unlike the two other designs, higher choice task complexity (as measured by entropy proxies) in the BDD does not increase choice variability of respondents. This is indicated by the absence of a significant increase in the variance of the Gumbel error in the choice data collected using BDD unlike the data collected using the two other criteria.

To study whether the three experimental designs vary in terms of choice determinism and task order effects, a separate analysis of the balanced data set using heteroskedastic logit models is undertaken. Results show that higher levels of choice task complexity (as measured by attribute dispersion proxies) in BDD contribute to increasing choice determinism of respondents but not in the orthogonal design. Choice data collected using BDD choice tasks exhibit a steady learning effect, unlike the other designs which do not exhibit any form of continuous learning. 

We conclude that the BDD criterion provides choice tasks that are superior compared to the other two design criteria. Choice data collected using this criterion has a higher quality as indicated by more attended choice tasks, lower choice variability and a pattern of continuous learning. These results point to a higher behavioural efficiency of respondents in evaluating complex choice tasks. However, these results might be specific to the choice data collected in this current study. We suggest that future studies should further investigate the impacts of different experimental designs to verify the findings of this study.

text: The Non-Market Value of Biodiversity Enhancement in New Zealand's Planted Forests This study investigates the non-market value of biodiversity enhancement in New Zealand’s planted forests using the stated choice experiments (CE) approach. This study focuses on two issues. One issue is policy orientated where we estimate the non-market value of biodiversity enhancement and the determinants of this value. The other issue is about the neutrality of major experimental design criteria used in CE. Specifically, we examine the impact of using different criteria on attribute non-attendance, choice variability, choice determinism and learning. 

To estimate the non-market value of biodiversity enhancement, a random parameters logit model with error components is used to analyse choice data collected from 209 respondents across New Zealand. The panel nature of the choice data set is exploited to calculate the marginal willingness-to-pay (WTP) for environmental attributes of each respondent. Panel random-effects regression models are subsequently employed to determine the factors that influence individual-specific WTP values. Results suggest that New Zealand taxpayers would be willing to pay $26.5 million per year for five years for a proposed biodiversity enhancement programme. Random effects regression analysis suggest that respondents living close to large planted forests (i.e., less than 10 kilometres away) would pay more for the programme. 

To study whether the selection of experimental design criterion affects attribute non-attendance and choice variability, we analyse a balanced sample with split designs. The balanced sample is composed of 1509 choice observations equally distributed across three experimental designs, namely: orthogonal, Bayesian D-efficient and optimal orthogonal. Results from latent class logit analysis suggest that tasks derived from the Bayesian D-efficient design (BDD) criterion are more attended than those derived from orthogonal and optimal orthogonal designs. Heteroskedastic logit analysis indicates that, unlike the two other designs, higher choice task complexity (as measured by entropy proxies) in the BDD does not increase choice variability of respondents. This is indicated by the absence of a significant increase in the variance of the Gumbel error in the choice data collected using BDD unlike the data collected using the two other criteria.

To study whether the three experimental designs vary in terms of choice determinism and task order effects, a separate analysis of the balanced data set using heteroskedastic logit models is undertaken. Results show that higher levels of choice task complexity (as measured by attribute dispersion proxies) in BDD contribute to increasing choice determinism of respondents but not in the orthogonal design. Choice data collected using BDD choice tasks exhibit a steady learning effect, unlike the other designs which do not exhibit any form of continuous learning. 

We conclude that the BDD criterion provides choice tasks that are superior compared to the other two design criteria. Choice data collected using this criterion has a higher quality as indicated by more attended choice tasks, lower choice variability and a pattern of continuous learning. These results point to a higher behavioural efficiency of respondents in evaluating complex choice tasks. However, these results might be specific to the choice data collected in this current study. We suggest that future studies should further investigate the impacts of different experimental designs to verify the findings of this study.

year: 2012

title: The discovery of gold at Te Aroha and its consequences: January to October 1880

authors: Hart, Philip

abstract: By mid-1880, when there were expectations that gold would be found at Te Aroha, at last Ngati Rahiri permitted prospecting. A government-subsidized prospecting party under Hone Werahiko set out in early August and announced an apparently valuable find one month later. As the discovery was on Ngati Rahiri land, a goldfield could not be declared open immediately, but despite this increasing numbers of prospectors arrived. Newspapers were cautious, not wanting to encourage a rush based on nothing but rumours, some of them extravagant, notably one of finding ore that would produce 200oz to the ton. 
Despite being doubtful about the prospects, officials prepared to proclaim a new goldfield. In late October, good specimens were shown in Thames, encouraging more to leave both there and the Waikato to explore. After the warden inspected the ground where Werahiko had found gold, which was off limits to everyone except the original prospectors, he arranged to have the only test made before the field was opened. Although this gave an uncertain indication of whether the ore was payable, and little real work was being done outside the prospectors’ claim, regulations were devised permitting the proclamation of the new field.

text: The discovery of gold at Te Aroha and its consequences: January to October 1880 By mid-1880, when there were expectations that gold would be found at Te Aroha, at last Ngati Rahiri permitted prospecting. A government-subsidized prospecting party under Hone Werahiko set out in early August and announced an apparently valuable find one month later. As the discovery was on Ngati Rahiri land, a goldfield could not be declared open immediately, but despite this increasing numbers of prospectors arrived. Newspapers were cautious, not wanting to encourage a rush based on nothing but rumours, some of them extravagant, notably one of finding ore that would produce 200oz to the ton. 
Despite being doubtful about the prospects, officials prepared to proclaim a new goldfield. In late October, good specimens were shown in Thames, encouraging more to leave both there and the Waikato to explore. After the warden inspected the ground where Werahiko had found gold, which was off limits to everyone except the original prospectors, he arranged to have the only test made before the field was opened. Although this gave an uncertain indication of whether the ore was payable, and little real work was being done outside the prospectors’ claim, regulations were devised permitting the proclamation of the new field.

year: 2016