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Hi Kamal,
maybe one of the main reasons for the lopsided focus on positive rather than negative ties is the difficulties in acquiring negative tie data. That said, there are increasing efforts in mapping out this so far mostly "hidden", but potentially much more important negative part of social systems.
Besides the important works by Labianca et al that you mentioned, some recent nice papers on the topic can be found here: http://recens.tk.mta.hu/en/publications-and-research-papers
Some works of mine also focused on signed networks in an online environment following a multiplex network approach: http://www.pnas.org/content/107/31/13636 http://www.sciencedirect.com/science/article/pii/S0378873310000316
And there are some papers from the computer science community focusing on large-scale data sets, for example: http://dl.acm.org/citation.cfm?id=1753532 http://dl.acm.org/citation.cfm?id=1772756 

None of them, as far as I am aware, has linked this explicitly to the topic of gossip, but that is an interesting next step. The bottleneck is always the data though. One possibility could be to look into publicly available data such as the Enron corpus or communication on Twitter. These have been studied extensively in the context of sentiment analysis, but, as far as I know, not in both the contexts of signed networks and gossip.
Best,
Michael

Postdoctoral Research Associate


On Thu, Sep 24, 2015 at 12:09 PM, Kamal Badar <[log in to unmask]> wrote:
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Dear All,

Literature on work place gossip talks about network ties and their relation to positive/negative work place gossip (e.g. Ellwardt, Steglich & Wittek, 2012; Ellwardt, Labianca & Witteka, 2012 ; Grosser, Lopez-Kidwell & Labianca, 2010). Mostly studies consider the association of multiplex network ties of positive valance (e.g. friendship-instrumental ties) with positive/negative gossip or ties solely of positive valance and their association with positive/negative gossip. 

The literature is surprisingly silent when it comes to negative ties (e.g. dislike) and ambivalent multiplex ties (e.g. friendship-hindrance) and their relation to positive/negative gossip. Even recommendations for future research in many research studies is silent.  

What might be the reason? Or is there actually some research available? Is is REALLY an avenue to explore or am I thinking in the wrong direction?

Regards              

--

Dr. Kamal Badar
Assistant Professor (TTS)
HEC Approved Ph.D. Supervisor
Institute of Management Sciences
University of Balochistan
Quetta, Pakistan. 

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