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1.
Human ecology has been criticized for its neglect of values and the individual. Ecologists have defended themselves by arguing that the process of adaptation is such that values and the individual can be ignored. Hawley (1950:66), for example, contends that adaptation is a communal phenomena and can be analyzed without reference to individual-level variables. Gibbs and Martin (1959) contend that the individual and values are insignificant in human ecology because of the mechanism of “selective survival,” which refers to the fact that only those societies with the proper combination of POET variables are able to survive in a given environment. This paper evaluates some of the models of adaptation used by human ecologists, and contends that the ecological models are rather elementary, and that they ignore some of the differences between biological and social adaptation. For these reasons the models minimize the role of values and the individual. In evaluating the ecological models, I present a model of adaptation to criticize the ecological models and to specify what I believe is the proper role of values and the individual in human ecology. The model describes three stages in the adaptive process (variation, transmission, and selection), and attempts to specify the role of values and the individual at each stage.  相似文献   

2.
This paper attempts to develop a macro social systems model devoid of the many problems which plagued functionalism. I eschew concepts such as equilibrium, survival, and functional prerequisite. Instead of societal survival I utilize the more general notion of level of living (L) and attempt to derive macro correlates of L. These are the society's population size, spatial area, organization, technology, and information level. Interrelationships among the variables are analyzed, as are aggregated and distributional measures of the variables. Compared to prior formulations this framework is relatively comprehensive, facilitates the analysis of variable primacy, incorporates both ideational and materialistic components, and provides a macro context for the analysis of individual action.  相似文献   

3.
Erratum     
In Peter L. Wright's, "Analyzing Media Effects on AdvertisingResponses" (Summer 1974), "the former" should be substitutedfor "the latter" so that the sentence reads correctly as follows(p. 206): "Print and broadcast media have been treated here,both theoretically and operationally according to the typicalsituation in which the former afford the greater response opportunity."  相似文献   

4.
Households constitute an important target group for energy conservation. They not only use energy in a direct way (gas, electricity and fuel) but also in an indirect way (embedded in the production, consumption and disposal of goods). During a period of five months (viz., October 2002–March 2003), direct and indirect energy use and direct and indirect energy savings of 189 Dutch households were monitored. The study examined the relative importance of socio-demographic variables and psychological variables in relation to household energy use and changes in energy use (viz., energy savings). For this purpose, variables from the theory of planned behavior [Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, 50, 179–211] and the norm activation model [Schwartz, S. H. (1977). Normative influences on altruism. In L. Berkowitz (Ed.). Advances in experimental social psychology (Vol. 10, pp. 221–279). New York: Academic Press] were used. Results indicate that energy use is determined by socio-demographic variables, whereas changes in energy use, which may require some form of (cognitive) effort, appear to be related to psychological variables. The variables from the norm activation model were able to significantly add to the explanation of energy savings, over and above the variables from the theory of planned behavior. Also, different types of energy use and energy savings appeared to be related to different sets of determinants.  相似文献   

5.
Contagion effects, also known as peer effects or social influence process, have become more and more central to social science, especially with the availability of longitudinal social network data. However, contagion effects are usually difficult to identify, as they are often entangled with other factors, such as homophily in the selection process, the individual’s preference for the same social settings, etc. Methods currently available either do not solve these problems or require strong assumptions. Following Shalizi and Thomas (2011), I frame this difficulty as an omitted variable bias problem, and I propose several alternative estimation methods that have potentials to correctly identify contagion effects when there is an unobserved trait that co-determines the influence and the selection. The Monte-Carlo simulation results suggest that a latent-space adjusted estimator is especially promising. It outperforms other estimators that are traditionally used to deal with the unobserved variables, including a structural equation based estimator and an instrumental variable estimator.  相似文献   

6.
Ethical consumer discourse is organized around the idea that shopping, and particularly food shopping, is a way to create progressive social change. A key component of this discourse is the “citizen-consumer” hybrid, found in both activist and academic writing on ethical consumption. The hybrid concept implies a social practice – “voting with your dollar” – that can satisfy competing ideologies of consumerism (an idea rooted in individual self-interest) and citizenship (an ideal rooted in collective responsibility to a social and ecological commons). While a hopeful sign, this hybrid concept needs to be theoretically unpacked, and empirically explored. This article has two purposes. First, it is a theory-building project that unpacks the citizen-consumer concept, and investigates underlying ideological tensions and contradictions. The second purpose of the paper is to relate theory to an empirical case-study of the citizen-consumer in practice. Using the case-study of Whole Foods Market (WFM), a corporation frequently touted as an ethical market actor, I ask: (1) how does WFM frame the citizen-consumer hybrid, and (2) what ideological tensions between consumer and citizen ideals are present in the framing? Are both ideals coexisting and balanced in the citizen-consumer hybrid, or is this construct used to disguise underlying ideological inconsistencies? Rather than meeting the requirements of consumerism and citizenship equally, the case of WFM suggests that the citizen-consumer hybrid provides superficial attention to citizenship goals in order to serve three consumerist interests better: consumer choice, status distinction, and ecological cornucopianism. I argue that a true “citizen-consumer” hybrid is not only difficult to achieve, but may be internally inconsistent in a growth-oriented corporate setting.  相似文献   

7.
I examine the relationship between vertical separation and gasoline stations' prices and sales. The endogeneity of stations' organizational forms is addressed using both panel methods and an instrumental variables strategy. Controlling for the endogeneity of form, I find that vertical separation raises margins by 25%–45% but does not have a statistically significant impact on output. I interpret these results as suggesting that vertical separation induces local agents to exert effort in ways that increase consumers' demand. (JEL L14, L24, L81)  相似文献   

8.
Previous studies of the growth of metropolitan communities, drawing primarily on ecological theory as represented by Burgess' concentric zone model of the metropolis, have highlighted the effects of distance from the city center on community development. Using data from one major suburban region, we show that a more complete examination of Burgess' ecological life-cycle theory should deal also with the effects of initial development pattern, age of housing stock, minority and low-income presence, and social heterogeneity. In addition we argue that the latter three variables also can be interpreted as measures of the potential for collective action of residents to restrict development, and show that an explicitly political characteristic—incorporation—has a significant impact on one dimension of succession. We conclude that rather than limiting attention to the effects of distance (simplifying Burgess' model to central place theory), studies of growth should address more directly the interaction between ecological processes and the socio-political framework within which they operate.  相似文献   

9.
Abstract

This paper explores the nature and meaning of the early termination experience from outpatient counseling among Latinos. A theoretically grounded perspective is forwarded to explain the nuances of minority group interface with human services (Green, 1995), and the early termination phenomenon among this population. The authors offer an explanatory model, referred to as the repelled client, which undergirds their central argument concerning the need to reexamine important aspects of cross-cultural counseling practice.  相似文献   

10.
This study is the first to examine the experiences and needs of an international sample of current, English-speaking, lesbian, transgender-identified (trans-lesbian) adults around a number of later life and end-of-life perceptions, preparations, and concerns. I analyzed a subset (n = 276) of the cross-sectional data collected from the online Trans MetLife Survey on Later-Life Preparedness and Perceptions in Transgender-Identified Individuals (N = 1,963). I assessed perceptions and fears around aging, preparation for later life, and end-of-life as well as numerous demographic and psycho-social variables. Despite the overall feeling that they have aged successfully, the respondent trans-lesbian population harbors significant fears about later life. I found that this population, while better-prepared than the overall respondent trans-identified population, is still ill-prepared for the major legalities and events that occur in the later to end-of-life time periods.  相似文献   

11.
The increasing prevalence of digital social technologies in everyday life affects processes of self and identity in theoretically and empirically interesting ways. Based on face‐to‐face interviews (N = 17) and synchronous text‐based exchanges (N = 32) from a Facebook‐based population, I examine the conditions of identity negotiation in a networked era, and explore how social actors strike a presentational balance between ideal and authentic. I identify three key interaction conditions: fluidity between digital and physical, expectations of accuracy, and overlapping social networks. I argue that social actors accomplish the ideal‐authentic balance through self‐triangulation, presenting a coherent image in multiple arenas and through multiple media. I differentiate between two degrees of triangulation: networked logic and preemptive action.  相似文献   

12.
Preferential trade agreements (PTAs) have proliferated over the past 60 years. While a small number of recent studies have examined empirically the economic determinants of the likelihood of a pair of countries having a PTA, this study explains empirically the timing of all PTA formations and enlargements from 1950 through 2006 using duration analysis. Our main and novel goal is to predict (in‐ and out‐of‐sample) a substantive share of these 1,560 PTA events using a parsimonious model with mainly economic variables, taking selection dynamics into account. Our analysis reveals that we can predict correctly in‐sample the actual year of entry into force for 26% of the 1,560 bilateral PTA formations/enlargements in the period 1950–2006 among 10,518 pairings of 146 countries using only a few economic and political variables. Moreover, we can predict correctly in‐sample 57% of these PTA events within a 10‐year window leading up to the event using this model. The model also performs well out‐of‐sample for the near term (82%), but not if the out‐of‐sample period is very long. We conclude with an evaluation of the model's ability to predict the timing of the North American Free Trade Agreement, the European Union's formation and enlargements, and the model's ten most likely post‐2006 PTA events. (JEL F14, F15)  相似文献   

13.
The study examined positive and negative responses to volunteering (satisfaction with volunteering, perceived contribution to beneficiaries, and burnout) among 102 adolescents in Israel. The conceptual framework for explaining those responses was the ecological approach to the study of human development. In that context, the paper deals with the combined contribution of two ecological systems—the ontogenic system and the microsystem. The ontogenic system included sociodemographic variables (gender and religiosity), as well as empowerment resources. The microsystem included variables related to family context (parental volunteer activity and family support for volunteering), as well as to the context of volunteer activity (perceived rewards, difficulties with volunteering, and professional supervision). Sociodemographic variables and difficulties in relations with the provider organization predicted burnout, whereas rewards and professional supervision predicted satisfaction with volunteering. Empowerment contributed most to explaining volunteers’ perceived contribution to the beneficiaries of services.  相似文献   

14.
The authors tested an ecological model that posits mediating variables (substance use and mental health) in the association between ecological factors (family closeness, school closeness, and peer closeness) and youth violence in a sample of 4,783 adolescents. Models including substance use present significantly less total effect between ecological factors and youth violence than do models without substance use. Additional probing of significant mediation effect using the Sobel test was performed and suggested that substance use did function as a mediator in the hypothesized path. Considerations of adolescent violence should recognize the possible role of ecological factors and how their influence may vary by substance use.  相似文献   

15.
The authors tested an ecological model that posits mediating variables (substance use and mental health) in the association between ecological factors (family closeness, school closeness, and peer closeness) and youth violence in a sample of 4,783 adolescents. Model including substance use present significantly less total effect between ecological factors and youth violence than do models without substance use. Additional probing of significant mediation effect using the Sobel test was performed and suggested that substance use did function as a mediator in the hypothesized path. Considerations of adolescent violence should recognize the possible role of ecological factors and how their influence may vary by substance use.  相似文献   

16.
A common motivation for adding control variables to statistical models is to reduce the potential for spurious findings when analyzing non-experimental data and to thereby allow for more reliable causal inferences. However, as I show here, unless all potential confounding factors are included in an analysis (which is unlikely to be achievable with most real-world data-sets), adding control variables to a model in many circumstances can make estimated effects of the variable(s) of interest to the researcher on the dependent variable less accurate. Due to this fact, in some circumstances omitting control variables, even those that affect the dependent variable and are correlated with the variable(s) of interest, may allow for more accurate estimates of the effect(s) of the variable(s) of interest.  相似文献   

17.
As more gambling venues open in Australia, youth gambling as problem behaviour has been identified. The aim of this study was to assess youth gambling in a population with easy access to gambling, and to evaluate the adequacy of a model for predicting adolescent gambling frequency and problem gambling. The model comprised a combination of the Theory of Reasoned Action (TRA) (Ajzen & Fishbein, 1980), personality variables (venturesomeness, impulsiveness), and cognitive bias variables derived from Weinstein's (1980) propositions concerning unrealistic optimism about future life events. A sample of 1017 school- and university-based adolescents indicated relatively low frequencies of gambling and low scores on the problem gambling scale, with males scoring higher than females on both measures. The TRA was supported with about 30% of the variance of each of gambling behaviour and problem gambling accounted for by intentions, attitudes, and subjective norms. Personality factors added significantly to the prediction of gambling. The cognitive bias variables, although independently not statistically significant, further contributed to prediction.  相似文献   

18.
The current study examined the willingness to communicate (WTC) of language learners who were studying English as a foreign language in a Chinese college setting. Some 234 college students participated in the study. The objective of the current study was to test the proposed relationships among communication apprehension (CA), self-perceived communication competence (SPCC), integrativeness, attitudes toward the learning situation, motivation, instrumental orientation, teacher immediacy, and second language (L2) WTC. A quantitative research method using questionnaires was employed. A path model was proposed and tested to examine the relationships among variables. The results of the study supported MacIntyre et al.'s (1998) WTC model. Four proposed relationships in the original path model were not obtained. Another four new relationships between variables were supported by the data. The significance of the current study lies in its theoretical contribution to the WTC construct and its pedagogical implication in second language teaching and learning.  相似文献   

19.
This investigation sought to operationalize a comprehensive theoretical model, the Trauma Outcome Process Assessment, and test it empirically with structural equation modeling. The Trauma Outcome Process Assessment reflects a robust body of research and incorporates known ecological factors (e.g., family dynamics, social support) to explain internalizing distress (e.g., anxiety, depression), externalizing distress (e.g., aggression), and recovery outcomes following traumatic events. Results revealed that expected relationships among the variables were significantly related in the expected direction, and the measures mapped well onto the expected latent constructs. Following optimal specification of the relationships within the Trauma Outcome Process Assessment, structural equation modeling revealed strong support for the Trauma Outcome Process Assessment as a comprehensive identification and treatment model to explain the differential outcomes of those exposed to traumatic stressors.  相似文献   

20.
In his discussion of my article “The Effect of Cultural Factors, Networks of Voluntary Associations, and Democratic Institutions on Economic Development — An International Comparison” (KZfSS 52, 2000: 195–225), Herbert Obinger questions the research design and the empirical results. In this rejoinder I shall show that Obinger’s criticism rests on an inadequate theoretical orientation and in various ways does not meet the requirements of a scientific and productive critique. In addition, it is argued that questions about the influence of political-cultural variables on economic development are of significance, especially for the population of modern democratic industrial societies, their empirical analysis presupposes the restriction to timespans and indicators relevant for the respective research problems. Obinger’s own modified research design includes an inappropriate measurement of socio-economic development. Furthermore, it is argued that his discussion rests on the wrong assumption that statistical significance is the leading factor in the interpretation of relevance of empirical effects in a population.  相似文献   

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