Coupons are an established promotional tool in marketing and sales. The increasing adoption of mobile telephony and ongoing diffusion of mobile phones have spurred first attempts in mobile couponing. Since consumer preferences and information on service choice behaviour can be of significant value in development processes of innovative products or services such as mobile couponing, we applied a...

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W develop and test an incentive-compatible Conjoint Poker (CP) game. The preference data collected in the context of this game are comparable to incentive-compatible choice-based conjoint (CBC) analysis data. We develop a statistical efficiency measure and an algorithm to construct efficient CP designs. We compare incentive-compatible CP to incentive-compatible CBC in a series of three experime...

In (1a) the verb is final in its main clause and must therefore occur in the disjoint form, marked by the prefix -la-. In (1b), the answer to the question in (1a), the verb occurs in the conjoint form, which lacks the -laprefix, since the verb is presupposed and ‘cigarettes’ is in focus. A table of Chibemba conjoint/disjoint forms is provided from Hyman & Watters (1948: 251) in (2) from Hyman &...

Conjoint analysis studies involving many attributes and attribute levels often occur in practice. Because such studies can cause respondent fatigue and lack of cooperation, it is important to design data collection tasks that reduce those problems. Bridging designs, incorporating two or more task subsets with overlapping attributes, can presumably lower task difficulty in such cases. In this pa...

The authors investigated whether the gestalt grouping principles can be quantified and whether the conjoint effects of two grouping principles operating at the same time on the same stimuli differ from the sum of their individual effects. After reviewing earlier attempts to discover how grouping principles interact, they developed a probabilistic model of grouping by proximity, which allows mea...

Being both EU-IST integrated projects in the field of AAL, PERSONA and SOPRANO organized a conjoint workshop on the occasion of the AmI-07 conference in order for the researchers of the projects to exchange insights of the approaches to the key field challenges, the achievements so far in each of the projects, and possible synergies in the future. Here, we summarize the exchanged info and the w...

Research on conjoint analysis/preference aggregation/social choice aggregation is performed by more than forty years by various communities. However, many proposed mathematical models understand preferences as irreflexive, transitive and statical relations while there is human psychology research work questioning these properties as being not enough motivated. This works propose to position the...