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Strength of Strong Ties Importance of  Philos  in organizations
What is tie strength? <ul><li>Granovetter: </li></ul><ul><ul><li>Combination of time, emotional intensity, intimacy and re...
Efficacy of ties <ul><li>Increasing tie strength from 0 to  n  increases tie efficacy </li></ul><ul><li>Increasing tie str...
Preponderance of weak ties <ul><li>Given Granovetter’s definition </li></ul><ul><li>Within an organization, everyone is co...
Psychology of Strong Ties <ul><li>Strong ties are affective </li></ul><ul><ul><li>Up for interpretation </li></ul></ul><ul...
Strength of Strong Ties <ul><li>Weak ties disseminate information and span subgroups </li></ul><ul><li>Hypothesis </li></u...
Philos - a special kind of strong tie <ul><li>Components </li></ul><ul><ul><li>Interaction frequency </li></ul></ul><ul><u...
Methodology <ul><li>Philos is hard to measure because it is a time-based phenomenon </li></ul><ul><li>One way to approach ...
Cognitive Network <ul><li>Questionnaire: </li></ul><ul><ul><li>For person A: </li></ul></ul><ul><ul><ul><li>Who does A go ...
Cognitive Network <ul><li>Result of questionnaire: </li></ul><ul><ul><li>“ Cognitive cube network”  </li></ul></ul><ul><ul...
True Network <ul><li>True network: </li></ul><ul><ul><li>R* j,j =1  iff  R i,j,I =1 and R i,j,j =1 </li></ul></ul><ul><ul>...
Accuracy of Network Perception <ul><li>Number of ties among alters that ego percieves correctly </li></ul><ul><ul><li>C i ...
Horizon of Observability <ul><li>C i  falls with distance from ego </li></ul>
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11 Strength Of Strong Ties

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11 Strength Of Strong Ties

  1. 1. Strength of Strong Ties Importance of Philos in organizations
  2. 2. What is tie strength? <ul><li>Granovetter: </li></ul><ul><ul><li>Combination of time, emotional intensity, intimacy and reciprocity </li></ul></ul><ul><ul><li>Empirically, only frequency of contact was used </li></ul></ul><ul><ul><li>Continuous function, yet discrete results </li></ul></ul>
  3. 3. Efficacy of ties <ul><li>Increasing tie strength from 0 to n increases tie efficacy </li></ul><ul><li>Increasing tie strength above n decreases efficacy </li></ul><ul><li>Where is the breakpoint? </li></ul>
  4. 4. Preponderance of weak ties <ul><li>Given Granovetter’s definition </li></ul><ul><li>Within an organization, everyone is connected to everyone with at least a weak tie </li></ul>
  5. 5. Psychology of Strong Ties <ul><li>Strong ties are affective </li></ul><ul><ul><li>Up for interpretation </li></ul></ul><ul><li>Reciprocal service </li></ul><ul><ul><li>“ Service” can be measured </li></ul></ul><ul><ul><li>“ Reciprocity” is much more difficult </li></ul></ul><ul><li>Time together is the only objective measure </li></ul><ul><ul><li>Too coarse </li></ul></ul>
  6. 6. Strength of Strong Ties <ul><li>Weak ties disseminate information and span subgroups </li></ul><ul><li>Hypothesis </li></ul><ul><ul><li>Strong ties are activated at times of stress and uncertainty </li></ul></ul>
  7. 7. Philos - a special kind of strong tie <ul><li>Components </li></ul><ul><ul><li>Interaction frequency </li></ul></ul><ul><ul><ul><li>Creates opportunity for info exchange </li></ul></ul></ul><ul><ul><li>Affection </li></ul></ul><ul><ul><ul><li>Creates motivation </li></ul></ul></ul><ul><ul><li>Time (extended relationship) </li></ul></ul><ul><ul><ul><li>History of interactions = basis of trust </li></ul></ul></ul><ul><ul><ul><li>Predictable interactions </li></ul></ul></ul>
  8. 8. Methodology <ul><li>Philos is hard to measure because it is a time-based phenomenon </li></ul><ul><li>One way to approach that is with cognitive networks </li></ul><ul><ul><li>I.e. integrated individual perceptions of the network </li></ul></ul>
  9. 9. Cognitive Network <ul><li>Questionnaire: </li></ul><ul><ul><li>For person A: </li></ul></ul><ul><ul><ul><li>Who does A go to for advice? {B,C,D,E…} </li></ul></ul></ul><ul><ul><ul><li>Who does A interact with socially? </li></ul></ul></ul><ul><ul><ul><li>Who do you think… </li></ul></ul></ul><ul><ul><ul><ul><li>B goes to for advice? </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C goes to for advice? </li></ul></ul></ul></ul><ul><ul><ul><ul><li>… </li></ul></ul></ul></ul><ul><ul><ul><ul><li>B socializes with </li></ul></ul></ul></ul><ul><ul><ul><ul><li>C socializes with </li></ul></ul></ul></ul>
  10. 10. Cognitive Network <ul><li>Result of questionnaire: </li></ul><ul><ul><li>“ Cognitive cube network” </li></ul></ul><ul><ul><li>Perception of network ties by third parties is often inaccurate </li></ul></ul>
  11. 11. True Network <ul><li>True network: </li></ul><ul><ul><li>R* j,j =1 iff R i,j,I =1 and R i,j,j =1 </li></ul></ul><ul><ul><li>Logical “AND” of perceptual slices of ego and alter </li></ul></ul>
  12. 12. Accuracy of Network Perception <ul><li>Number of ties among alters that ego percieves correctly </li></ul><ul><ul><li>C i =Sum(R kl,I AND R* kl )/(n-1) 2 </li></ul></ul><ul><li>High cognitive accuracy correlated with high network performance </li></ul>
  13. 13. Horizon of Observability <ul><li>C i falls with distance from ego </li></ul>

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