Navigation Links
Does cooperation require both reciprocity and alike neighbors?
Date:6/8/2012

ained from prior events involving cooperation. In the past, both approaches have been regarded separately.

Using computer simulations and mathematical models, a group of scientists around Julian Garcia from the Max-Planck Institute of Evolutionary Biology in Pln have developed a new model that is taking both concepts into account. They discovered that direct reciprocity alone is not enough, and that population structure is necessary in order to reach a high level of cooperation. When there is some reciprocity, the average level of cooperation increases because alike types are more likely to interact with each other. Additionally, the researchers observed that cooperation occurs if cooperative and defective individuals are highly clustered and repetition is rare. And surprisingly, too much repetition can even harm cooperation in cases when the population structure makes cooperation between individuals very likely. This is due to the fact that reciprocity can protect defectors from invasion by defectors in a similar manner that it prevents cooperation from being invaded by defectors.

"Without population structure, cooperation based on repetition is unstable", Garcia explains one of the main findings. This is especially true for humans, where repetition occurs regularly and who live in fluid, but not totally unstructured populations. A pinch of population structure helps a lot if repetition is present. "Therefore, the recipe for human cooperation might be: a bit of structure and a lot of repetition", says Julian Garcia. This phenomenon results in a high average level of cooperation.


'/>"/>
Contact: Dr. Julian Garcia
garcia@evolbio.mpg.de
49-452-276-3224
Max-Planck-Gesellschaft
Source:Eurekalert

0

GOOD

Page: 1 2

Related medicine news :

1. Brave New World of Genetics Requires Safeguards, Experts Say
2. Breast stem-cell research: Receptor teamwork is required and a new pathway may be involved
3. Cancer may require simpler genetic mutations than previously thought
4. Study: More Pre-Teens Get Vaccines When Middle Schools Require Them
5. Simple assault and ground level fall do not require cervical spine CT
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... Rottenstein Law Group LLP, a New York-based nationwide mass ... Center at http://www.rotlaw.com/tylenol , dedicated to issues that ... filing lawsuits. , The painkiller Tylenol (acetaminophen) has ... to a 2009 report from the U.S. Food and ... warned consumers against using more than the recommended dose ...
(Date:5/23/2013)... (PRWEB) May 23, 2013 Dr. Katherine ... new charitable organization in Orange County, OCCares , will ... Orange County. The event details are as follows: , ... Academy Auditorium, 13732 Clinton Street, Garden Grove, CA 92843 , ... crossover music by Christian vocalists Charmaine & Jonathan Thulin. ...
(Date:5/23/2013)... The vast majority of Americans believe it’s ... their level of physical activity, the healthfulness of their ... taking that control. Those are among the findings ... Food & Health Survey. , According to the Survey, ... “a great deal of control” or “complete control” over ...
(Date:5/23/2013)... 2013 Click here to read the ... are increasingly seeing their success develop through merger ... according to new research carried out by MaRS ... company has compiled its research into a series of ... the research have shown the general trend that the ...
(Date:5/23/2013)... 2013 Jeanne Ettelson, president of ... popular and only free OCD support group in Chicago. ... for OCD sufferers, the group is lead by psychologists ... This allows group participants to learn accurate information ... Prevention. , “Participants in Beyond OCD’s support group ...
Breaking Medicine News(10 mins):Health News:Rottenstein Law Group LLP Now Accepting Tylenol Cases, Announces New Tylenol Lawsuit Information Center 2Health News:Dr. Katherine Ahn is Proud to Announce the Launch Her Family's New Charity OCCares 2Health News:Dr. Katherine Ahn is Proud to Announce the Launch Her Family's New Charity OCCares 3Health News:Americans Experience “Control Gap” Regarding Their Weight, Diet, Activity Level; Rate Their Overall Diet a “B-Minus” 2Health News:Americans Experience “Control Gap” Regarding Their Weight, Diet, Activity Level; Rate Their Overall Diet a “B-Minus” 3Health News:Americans Experience “Control Gap” Regarding Their Weight, Diet, Activity Level; Rate Their Overall Diet a “B-Minus” 4Health News:Merrill DataSite Releases New Comments: Trends amidst Canadian and US Tech M&A 2Health News:Merrill DataSite Releases New Comments: Trends amidst Canadian and US Tech M&A 3Health News:Merrill DataSite Releases New Comments: Trends amidst Canadian and US Tech M&A 4Health News:Beyond OCD Support Group Marks Fifth Anniversary 2
... a protein called IGF-1 not entirely successful, studies find ... that prostate cancer can be treated successfully just by ... factor (IGF-1) has been undermined by two new studies. ... a number of drug companies and academic researchers, stimulated ...
... Consumers flooded Castle Connolly,s,website http://www.castleconnolly.com in ... Top Doctors," offered in collaboration with the,award-winning newspaper ... alone,Tuesday, April 29th, Newsday,s online users viewed Castle ... to our usual heavy traffic,from other sources," said ...
... MIRAMAR, Fla., May 1 Nipro Diabetes Systems ... time to the market. The,pump helps control blood ... and 2,diabetes. Built for safety, reliability, accuracy and ... screens for easy programming.,Developed and manufactured in the ...
... to Make Ends Meet, HARRISBURG, Pa., May 1 ... the rising costs of health care,would be greatly helped ... care insurance for all, a Department of Agriculture official ... Food Bank, Deputy Secretary,of Agriculture Cheryl Cook said passage ...
... 1 Physicians Healthcare Management,Group, Inc. (Phyhealth) ... organizations (HMOs) in partnership with physicians, today,announced ... as medical director,of Phyhealth Plan Corporation., ... Orlando, Florida, who has,extensive experience as the ...
... with pregnancy outcomes, CHICAGO, May 1 With ... wants to remind mothers-to-be,that maintaining good oral health is ... Research suggests there may be an association between maternal ... In addition, a,recent study says that pregnant women with ...
Cached Medicine News:Health News:Complications Found in Proposed Prostate Cancer Treatment 2Health News:Castle Connolly's 'Long Island's Top Doctors' Published in Newsday Generates More Than 1.1 Million Views of Top Doctors' Profiles in Single Day 2Health News:Photo: Introduction of the Amigo Insulin Pump Offers a Lifestyle Where 'Life Has No Limits' 2Health News:Pennsylvania Agriculture Official Says Passage of PA ABC Crucial to Rural Communities 2Health News:Phyhealth Appoints Gerald H. Priceman as Medical Director 2Health News:Phyhealth Appoints Gerald H. Priceman as Medical Director 3Health News:American Dental Association Stresses Good Oral Health During Pregnancy 2
(Date:5/23/2013)... SAN DIEGO , May 23, 2013 /PRNewswire/ ... the prostate cancer treatment continuum was highlighted prominently ... the American Urological Association (AUA), in San Diego.  ... invasive high intensity focused ultrasound (HIFU) technology, the ... localize disease, and for urologists to consider minimally ...
(Date:5/23/2013)... -- Spring Bank Pharmaceuticals, Inc., a biopharmaceutical company developing innovative ... that it has initiated dosing in a Phase I ... therapy for the treatment of HCV infection. This study will ... to assess both the safety and antiviral efficacy of ... the treatment of chronic HCV infections and is based ...
(Date:5/23/2013)... AVIV, Israel , May 23, 2013 ... BrainTech Israel 2013 , Israel,s ... place on October 14 th -15 th in ... nd most innovative city in the world by the ... "Start-up Nation." BrainTech Israel 2013 will showcase the ...
Breaking Medicine Technology:Need for Image Guided Minimally Invasive Ablative Treatments Featured Prominently at American Urological Association (AUA) Annual Meeting 2Need for Image Guided Minimally Invasive Ablative Treatments Featured Prominently at American Urological Association (AUA) Annual Meeting 3Need for Image Guided Minimally Invasive Ablative Treatments Featured Prominently at American Urological Association (AUA) Annual Meeting 4Need for Image Guided Minimally Invasive Ablative Treatments Featured Prominently at American Urological Association (AUA) Annual Meeting 5Need for Image Guided Minimally Invasive Ablative Treatments Featured Prominently at American Urological Association (AUA) Annual Meeting 6Spring Bank Pharmaceuticals Initiates a Phase I Clinical Trial for SB 9200 in HCV-infected Patients 2Spring Bank Pharmaceuticals Initiates a Phase I Clinical Trial for SB 9200 in HCV-infected Patients 3Israel Brain Technologies Announces Israel's 1st International Brain Technology Conference 2Israel Brain Technologies Announces Israel's 1st International Brain Technology Conference 3
... in Excess of $10 Million; Access Gains Second ... SEOUL, South Korea, Feb. 19 ... and JCOM Ltd , an ... the Republic of Korea, today announced the signing of ...
... Were Performed on AMI Patients in 2008, According to ... Millennium Research Group,s (MRG,s) US Markets for Interventional ... stents will continue to climb steadily through 2013, driven ... coronary intervention (PCI) in Acute Myocardial Infarction (AMI) patients, ...
Cached Medicine Technology:Access Licenses ProLindac(TM) and MuGard(TM) to JCOM Ltd, an Affiliate of DONG-A Pharmaceuticals in Korea 2Access Licenses ProLindac(TM) and MuGard(TM) to JCOM Ltd, an Affiliate of DONG-A Pharmaceuticals in Korea 3Access Licenses ProLindac(TM) and MuGard(TM) to JCOM Ltd, an Affiliate of DONG-A Pharmaceuticals in Korea 4Adoption of PCI in AMI Patients to Drive Drug-Eluting Stent Use 2
... is for arthroscopic and open soft tissue repair ... procedural steps. It may be used with ... in conjunction with,anchors or screws (including suture pre-assembled ... tip permits the placement of a variety of ...
Knot pusher/suture retriever...
... The RC Retractor comes ... allow for superficial or deep ... Retractor permits retraction in three ... inferior. The fiber optic ...
Shoulder rasp...
Medicine Products: