title: Testing the fundamental assumption of choice experiments: Are values absolute or relative?

authors: Luisetti, Tiziana

subjects: choice experiment

abstract: A split sample experiment is conducted to test one of the most fundamental assumptions underpinning choice experiments in an environmental setting: whether stated values are absolute or relative. The test uses a natural experiment involving respondents at different home locations relative to potential new wetland sites. Respondents were presented with one of two ranges of distances. An absolute value interpretation requires that the functional relations with distance derived from these two ranges be consistent with each other. We reject a null hypothesis of no range bias, suggesting that respondents may perceive attribute levels in a relative rather than absolute sense.

text: Testing the fundamental assumption of choice experiments: Are values absolute or relative? A split sample experiment is conducted to test one of the most fundamental assumptions underpinning choice experiments in an environmental setting: whether stated values are absolute or relative. The test uses a natural experiment involving respondents at different home locations relative to potential new wetland sites. Respondents were presented with one of two ranges of distances. An absolute value interpretation requires that the functional relations with distance derived from these two ranges be consistent with each other. We reject a null hypothesis of no range bias, suggesting that respondents may perceive attribute levels in a relative rather than absolute sense.

year: 2011

title: Bipenalty method from a frequency domain perspective

authors: Ilanko, Sinniah

subjects: bipenalty method

abstract: In a recent paper, it was shown that for time domain analysis, the simultaneous use of inertial and stiffness type penalty parameters to enforce constraints was found to yield accurate and converging results without causing any stability problems. From a frequency domain perspective, this is somewhat unexpected because the solution converges from below when stiffness penalty parameters are used to model constraints, and the convergence is from above when inertial penalty parameters are used. The purpose of this paper is to explain the effect of the simultaneous use of stiffness and inertial penalty parameters on the natural frequencies of constrained systems. In this work, it is shown that if suitably tuned, the bipenalty approach works well for frequency domain analysis also, and that with two different tuned set of stiffness and inertial penalty parameters, bounded solutions to the natural frequencies of constrained systems may be obtained. The method is applicable for any linear eigenvalue problem.

text: Bipenalty method from a frequency domain perspective In a recent paper, it was shown that for time domain analysis, the simultaneous use of inertial and stiffness type penalty parameters to enforce constraints was found to yield accurate and converging results without causing any stability problems. From a frequency domain perspective, this is somewhat unexpected because the solution converges from below when stiffness penalty parameters are used to model constraints, and the convergence is from above when inertial penalty parameters are used. The purpose of this paper is to explain the effect of the simultaneous use of stiffness and inertial penalty parameters on the natural frequencies of constrained systems. In this work, it is shown that if suitably tuned, the bipenalty approach works well for frequency domain analysis also, and that with two different tuned set of stiffness and inertial penalty parameters, bounded solutions to the natural frequencies of constrained systems may be obtained. The method is applicable for any linear eigenvalue problem.

year: 2013

title: The chronology of Waikato pā: A spatio-temporal investigation of pā in the middle Waikato basin

authors: McBride, Rowan

subjects: pā

abstract: This study considers the chronology of pā construction, proliferation, and development within the 
Middle Waikato Basin through a spatio-temporal investigation of palisade construction activity as 
identified at six pā (fortified places). The chronological approach applied in this thesis uses 14C 
wiggle-match dating to provide an accurate and precise calendar date for the felling of a tree 
(Felling Date) used to construct a palisade defence at a pā. These Felling Dates are interpreted using 
the theory of time perspectivism, focusing on three distinct scales of analysis: Event, Local, and 
Regional. The event scale of analysis successfully produced twenty high-precision felling dates on 
posts recovered from Lake Mangakaware 1 (MA1), Lake Mangakaware 2 (MA2), Lake Mangahia 
(MGA), Taraheke Pā (TAR), Te Uapata Pā (TEU) and Lake Rotokauri (ROT). The local scale 
analysis utilised these felling dates to track the development of the identified palisade defences 
over time, identifying multiple palisade construction phases, representing construction, repair and 
redevelopment episodes at MA1, MA2, MGA, TAR and TEU. Finally, the regional scale analysis 
integrated this evidence into a broader chronological framework, identifying shared episodes of 
palisade construction activity within the Middle Waikato Basin. This analysis highlights three 
critical periods of proposed socio-political stress and stability between the late fifteenth and early 
nineteenth centuries, related to hypothesised influential variables from the broader cultural and 
archaeological landscape that are proposed to be responsible for the emergence, proliferation and 
development of pā over time.

text: The chronology of Waikato pā: A spatio-temporal investigation of pā in the middle Waikato basin This study considers the chronology of pā construction, proliferation, and development within the 
Middle Waikato Basin through a spatio-temporal investigation of palisade construction activity as 
identified at six pā (fortified places). The chronological approach applied in this thesis uses 14C 
wiggle-match dating to provide an accurate and precise calendar date for the felling of a tree 
(Felling Date) used to construct a palisade defence at a pā. These Felling Dates are interpreted using 
the theory of time perspectivism, focusing on three distinct scales of analysis: Event, Local, and 
Regional. The event scale of analysis successfully produced twenty high-precision felling dates on 
posts recovered from Lake Mangakaware 1 (MA1), Lake Mangakaware 2 (MA2), Lake Mangahia 
(MGA), Taraheke Pā (TAR), Te Uapata Pā (TEU) and Lake Rotokauri (ROT). The local scale 
analysis utilised these felling dates to track the development of the identified palisade defences 
over time, identifying multiple palisade construction phases, representing construction, repair and 
redevelopment episodes at MA1, MA2, MGA, TAR and TEU. Finally, the regional scale analysis 
integrated this evidence into a broader chronological framework, identifying shared episodes of 
palisade construction activity within the Middle Waikato Basin. This analysis highlights three 
critical periods of proposed socio-political stress and stability between the late fifteenth and early 
nineteenth centuries, related to hypothesised influential variables from the broader cultural and 
archaeological landscape that are proposed to be responsible for the emergence, proliferation and 
development of pā over time.

year: 2024