1,874 research outputs found
The Incubator Hypothesis: Evidence from Five Cities
The purpose of this paper is to review the past evidence and to offer some new data to assess whether the incubator hypothesis can be empirically supported. In particular the two general aspects of the hypothesis will be tested. First, we will examine the proposition that highly centralized locations are attracting a disproportionate number of new firms and/or the employment associated with new firms. Second, we will test the hypothesis that new firms which are formed in high density areas move outward from such sites in their early years of existence in order to expand their productive activities. We refer to these as the "simple and "dynamic" hypotheses in the rest of the paper. Our analysis is based on the experience of all manufacturers in several U.S. cities. We recognize that it is quite possible that the hypothesis could hold for certain industries even if it is unsupported for all firms together. Our intent, however, is to test the validity of the hypothesis as a general theory of intraurban location behavior. The paper consists of three sections. The first two present evidence on the "simple" and "dynamic" hypotheses. The final section summarizes our findings and offers some conclusions.
Induction of Pluripotency in Human Keratinocytes Through mRNA Transfection
INDUCTION OF PLURIPOTENCY IN HUMAN KERATINOCYTES THROUGH mRNA TRANSFECTION. Robert D. Leone, Peter M. Rabinovich, Eugenie Cheng, Efim Golub, and Sherman M. Weissman. Department of Genetics, Yale University, School of Medicine, New Haven, CT. Induced pluripotent stem (iPS) cells are epigenetically reprogrammed somatic cells that exhibit developmental and proliferative characteristics of embryonic stem (ES) cells. Other than alterations made during the reprogramming process, iPS cells are genotypically identical to donor tissue, giving them significant potential in regenerative medicine, basic biology of genetic disease, and drug development. Presently, iPS cell derivation largely relies on the introduction of reprogramming factors (eg, OCT4, SOX2, KLF4, c-MYC) directly into cellular genomes, leaving cells vulnerable to insertional mutagenesis and persistent expression of oncogenic transcription factors. This severely limits their use in clinical and research settings. Here we describe the reprogramming of human keratinocytes through the introduction of exogenous mRNA transcripts. mRNA presence within cells is transient and is unlikely to have permanent effects on the cellular genome, thus avoiding the pitfalls of present methods of iPS cell generation. Several benchmarks have been achieved toward this end, includ-ing: 1) successful expression in human cells of reprogramming factor proteins through the introduction of exogenous mRNA transcripts; 2) phenotypic transformation of human keratinocytes toward ES cell morphology by transfection with mRNA reprogramming factors; and 3) alkaline phosphatase activity (a well described early marker of pluripotency) in a small proportion of transformed cells. These results imply that mRNA transfection may be a viable method for reprogramming somatic cells towards pluripotency
A follow-up study of the graduates of the Lockwood Montana junior high school for the school years 1953-1957
Psychological Implications of Customer Participation in Co-Production
This is the published version. Copyright 2003 by the American Association of Marketing.Customer participation in the production of goods and services appears to be growing. The marketing literature has largely focused on the economic implications of this trend and has not addressed customersâ potential psychological responses to participation. The authors draw on the social psychological literature on the self-serving bias and conduct two studies to examine the effects of participation on customer satisfaction. Study 1 shows that consistent with the self-serving bias, given an identical outcome, customer satisfaction with a firm differs depending on whether a customer participates in production. Study 2 shows that providing customers a choice in whether to participate mitigates the self-serving bias when the outcome is worse than expected. The authors present theoretical and practical implications and provide directions for further research
Managing Business-to-Business Customer Relationships Following Key Contact Employee Turnover in a Vendor Firm
This is the published version. Copyright 2002 by the American Marketing Association.Customers form relationships with the employees who serve them as well as with the vendor firms these employees represent. In many cases, a customerâs relationship with an employee who is closest to them, a key contact employee, may be stronger than the customerâs relationship with the vendor firm. If the key contact employee is no longer available to serve that customer, the vendor firmâs relationship with the customer may become vulnerable. In this article, the authors present the results of two studies that examine what business-to-business customers value in their relationships with key contact employees, what customersâ concerns are when a favored key contact employee is no longer available to serve them, and what vendor firms can do to alleviate these concerns and to retain employee knowledge even if they cannot retain the employee in that position. The studies are based on a discovery-oriented approach and integrate input from business-to-business customers, key contact employees, and managers from a broad cross-section of companies to develop testable propositions. The authors discuss managerial and theoretical implications and directions for further research
Chasing Brand Value: Fully Leveraging Brand Equity to Maximize Brand Value
Both researchers and practitioners seek to understand how to leverage brand equity to create value. Adopting âthe theoretical separation of brand equity and brand valueâ framework originally proposed in the Journal of Brand Management by Raggio and Leone, this conceptual paper looks more closely at the brand value construct and the implications of the proposed theoretical separation. The authors argue that firms are continually attempting to âchaseâ the appropriable value of their brandsâdefined as the theoretical maximum value that a brand could achieve if all brand equity were fully leveraged. Implications for developing measures of brand value are discussed
The Theoretical Separation of Brand Equity and Brand Value: Managerial Implications for Strategic Planning
During the past 15 years, brand equity has been a priority topic for both practitioners and academics. In this paper, the authors propose a new framework for conceptualizing brand equity that distinguishes between brand equity, conceived of as an intrapersonal construct that moderates the impact of marketing activities, and brand value, which is the sale or replacement value of a brand. Such a distinction is important because, from a managerial perspective, the ultimate goal of brand management and brand equity research should be to understand how to leverage equity to create value
Postscript: Preserving (and Growing) Brand Value in a Downturn
We have taken the opportunity provided by the current worldwide recession to further explore the implications of the relationship between brand equity and brand value that we proposed previously,1,2 and our analysis reveals that companies have one of two strategic options for surviving. The âJust Good Enoughâ strategy maximizes current value, potentially hurting brand equity and appropriable value (or potential future value) in the process, while the âAltered Amortizationâ strategy offers an opportunity to chase current value while maintaining brand equity with current prospects and activating latent equity with potential prospects, which may increase appropriable value. Anything between these two is a non-viable long-term strategy and companies hoping to ride it out âin the middleâ may not make it. We explain both of these strategies below and offer a framework for analyzing which one is right for your brand
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