title: Dominant words rise to the top by positive frequency-dependent selection.

authors: Pagel, Mark

subjects: approximate Bayesian computation

abstract: A puzzle of language is how speakers come to use the same words for particular meanings, given that there are often many competing alternatives (e.g., "sofa," "couch," "settee"), and there is seldom a necessary connection between a word and its meaning. The well-known process of random drift-roughly corresponding in this context to "say what you hear"-can cause the frequencies of alternative words to fluctuate over time, and it is even possible for one of the words to replace all others, without any form of selection being involved. However, is drift alone an adequate explanation of a shared vocabulary? Darwin thought not. Here, we apply models of neutral drift, directional selection, and positive frequency-dependent selection to explain over 417,000 word-use choices for 418 meanings in two natural populations of speakers. We find that neutral drift does not in general explain word use. Instead, some form of selection governs word choice in over 91% of the meanings we studied. In cases where one word dominates all others for a particular meaning-such as is typical of the words in the core lexicon of a language-word choice is guided by positive frequency-dependent selection-a bias that makes speakers disproportionately likely to use the words that most others use. This bias grants an increasing advantage to the common form as it becomes more popular and provides a mechanism to explain how a shared vocabulary can spontaneously self-organize and then be maintained for centuries or even millennia, despite new words continually entering the lexicon.

text: Dominant words rise to the top by positive frequency-dependent selection. A puzzle of language is how speakers come to use the same words for particular meanings, given that there are often many competing alternatives (e.g., "sofa," "couch," "settee"), and there is seldom a necessary connection between a word and its meaning. The well-known process of random drift-roughly corresponding in this context to "say what you hear"-can cause the frequencies of alternative words to fluctuate over time, and it is even possible for one of the words to replace all others, without any form of selection being involved. However, is drift alone an adequate explanation of a shared vocabulary? Darwin thought not. Here, we apply models of neutral drift, directional selection, and positive frequency-dependent selection to explain over 417,000 word-use choices for 418 meanings in two natural populations of speakers. We find that neutral drift does not in general explain word use. Instead, some form of selection governs word choice in over 91% of the meanings we studied. In cases where one word dominates all others for a particular meaning-such as is typical of the words in the core lexicon of a language-word choice is guided by positive frequency-dependent selection-a bias that makes speakers disproportionately likely to use the words that most others use. This bias grants an increasing advantage to the common form as it becomes more popular and provides a mechanism to explain how a shared vocabulary can spontaneously self-organize and then be maintained for centuries or even millennia, despite new words continually entering the lexicon.

year: 2019

title: My impossible dream.

authors: Waggoner, Jennifer L.

subjects: education

abstract: The article presents the author's views on leisure studies. The author says, "I have always thought of myself as different. Different in the sense that while growing up I never, in my mind, seemed to fit into what society deemed "normal." For me this society was Southern California, home to movie stars and the latest fashion trends; the so-called "beautiful people." In the 1980s and 1990s, this society demanded a certain look that was anything but normal, and growing up in this shadow of influence, if you did not fit in "you knew it. It is still much the same today. Anywhere you go, advertisements and media coverage about beauty, diet and how to live bombard you. People who stand out are often targeted and made fun of for being and looking different from the ideal.

text: My impossible dream. The article presents the author's views on leisure studies. The author says, "I have always thought of myself as different. Different in the sense that while growing up I never, in my mind, seemed to fit into what society deemed "normal." For me this society was Southern California, home to movie stars and the latest fashion trends; the so-called "beautiful people." In the 1980s and 1990s, this society demanded a certain look that was anything but normal, and growing up in this shadow of influence, if you did not fit in "you knew it. It is still much the same today. Anywhere you go, advertisements and media coverage about beauty, diet and how to live bombard you. People who stand out are often targeted and made fun of for being and looking different from the ideal.

year: 2004

title: Population diversity in Aotearoa New Zealand: Insights from the CaDDANZ research programme

authors: Stone, Geoff

abstract: CaDDANZ was a New Zealand Government-funded project studying the impacts of growing population diversity in Aotearoa New Zealand. The project ran from 2014 to 2020 and was extended to March 2021 due to the effects of the global COVID-19 pandemic. Staffed by a multidisciplinary team of researchers, CaDDANZ aimed to identify changing demographics and the impacts of ethnic and demographic diversity on aspects of economic and social change. This report has synthesised a bundle of key insights that could only have surfaced through the reflection on the interplay between the research questions that the original bid set out to address. While we, as a project team, did not intend to produce transdisciplinary or even interdisciplinary work on migration, diversity or the diversity dividend, setting a goal to synthesise something from the project as a whole has produced this report. Using social cohesion as a sorting mechanism for the insights has meant this overview is selective and high level. Not all the projects can be read against a social cohesion or even social inclusion lens. In particular, many of the econometric outputs explicitly addressed aspects of diversity as an economic dividend and that work is not highlighted in the synthesis. 
Three broad themes are addressed 
1. Immigration and diversity – understanding population trends 
2. [Re] conceptualising ethno-demographic diversity in Aotearoa – Tangata whenua perspectives 
3. Diversity in context – in different settings and over time 
The report concludes with four high-level insights 
1. Immigration policy needs to re-examine its position in relation to Tiriti o Waitangi where any Crown partnership relationship is currently lacking. 
2. Despite social cohesion being a negotiated term, its use as a framing for the impacts of migration on both the host country and individual migrant lives is underpinned by its use in the Royal Commission of Inquiry into the terrorist attack on Christchurch mosques on 15 March 2019 and is preferable to the concept of a diversity dividend.1 
3. While ethnocultural diversity is the default for ‘diversity dividend’ research, the concept of the social organisation of difference has broader relevance to social justice-oriented policy development.2 
4. The use of wide range of different methodologies is vital for the production of wellevidenced, theory-informed strategies and policies.

text: Population diversity in Aotearoa New Zealand: Insights from the CaDDANZ research programme CaDDANZ was a New Zealand Government-funded project studying the impacts of growing population diversity in Aotearoa New Zealand. The project ran from 2014 to 2020 and was extended to March 2021 due to the effects of the global COVID-19 pandemic. Staffed by a multidisciplinary team of researchers, CaDDANZ aimed to identify changing demographics and the impacts of ethnic and demographic diversity on aspects of economic and social change. This report has synthesised a bundle of key insights that could only have surfaced through the reflection on the interplay between the research questions that the original bid set out to address. While we, as a project team, did not intend to produce transdisciplinary or even interdisciplinary work on migration, diversity or the diversity dividend, setting a goal to synthesise something from the project as a whole has produced this report. Using social cohesion as a sorting mechanism for the insights has meant this overview is selective and high level. Not all the projects can be read against a social cohesion or even social inclusion lens. In particular, many of the econometric outputs explicitly addressed aspects of diversity as an economic dividend and that work is not highlighted in the synthesis. 
Three broad themes are addressed 
1. Immigration and diversity – understanding population trends 
2. [Re] conceptualising ethno-demographic diversity in Aotearoa – Tangata whenua perspectives 
3. Diversity in context – in different settings and over time 
The report concludes with four high-level insights 
1. Immigration policy needs to re-examine its position in relation to Tiriti o Waitangi where any Crown partnership relationship is currently lacking. 
2. Despite social cohesion being a negotiated term, its use as a framing for the impacts of migration on both the host country and individual migrant lives is underpinned by its use in the Royal Commission of Inquiry into the terrorist attack on Christchurch mosques on 15 March 2019 and is preferable to the concept of a diversity dividend.1 
3. While ethnocultural diversity is the default for ‘diversity dividend’ research, the concept of the social organisation of difference has broader relevance to social justice-oriented policy development.2 
4. The use of wide range of different methodologies is vital for the production of wellevidenced, theory-informed strategies and policies.

year: 2021