The Industry Website

Panos Ipeirotis Expert

Panos Ipeirotis


Send message

LinkedIn profile

Apr 05, 2011
9 items

Web's Largest listing of crowdsourcing and crowdfunding events


Web's Largest Directory of Sites

2,968 crowdsourcing and crowdfunding sites

Panos Ipeirotis

Content Type
Latest Trending Most Commented Most Viewed
Towards a Market for Intelligence
Distributed Knowledge, Tools

Panos Ipeirotis offers some thoughts on the emergence of API marketplaces and markets for intelligence.

Read more

Panos IpeirotisJan 29, 2013 05:46 pm GMT4805 views
Why I Love Crowdsourcing (the Concept) and Hate Crowdsourcing (the Term)
Cloud Labor

The term crowdsourcing is in fashion. It is being used to describe pretty much everything under the sun today. Unfortunately, the word crowdsourcing is also getting increasingly associated with "getting things done for free," or at least at ultra-cheap prices.

Read more

Panos IpeirotisNov 29, 2012 12:59 pm GMT8767 views
Is Mechanical Turk a $10 Billion Company?

Crunching the numbers to try and decipher how much  Amazon's cloud labor platform is worth.

Read more

Panos IpeirotisNov 20, 2012 12:50 pm GMT8204 views
Why oDesk Has No Spammers
Cloud Labor

Contributing expert Panos Ipeirotis explains how a lack of anonymity helps oDesk keep its crowdsourcing platform spam-free.

Read more

Panos IpeirotisOct 28, 2012 09:11 pm GMT6167 views
The (Unofficial) NIST Definition of Cloud Labor and Crowdsourcing

A few weeks ago, I was attending the NSF Workshop on Social Networks and Mobility in the Cloud. There, I ran into the NIST definition of cloud computing (PDF).

After reading it, I felt that it would be a nice exercise to transform the definition into something similar for the dual area of "cloud labor" (a.k.a. crowdsourcing).

Read more

Panos IpeirotisApr 03, 2012 03:00 pm GMT6175 views
Does Lack of Reputation Help the Crowdsourcing Industry?

Can the lack of a public reputation system on Amazon Mechanical Turk be the reason behind the success of current crowdsourcing companies? My analysis points to this conclusion. Unfortunately, this "feature" also leads to a stagnating crowdsourcing market with limited growth potential.

A contentious issue about crowdsourcing, and specifically about Amazon Mechanical Turk, is that wages are very low. It is not uncommon to see effective wages of $1/hr, or even lower. Why is that???I have argued in the past that Mechanical Turk is an example of a ‘market for lemons’ — good workers are drowning in the anonymity of the crowd. Since the good workers cannot differentiate themselves from bad workers before working on a task, they are doomed to receive the same level of compensation as the bad workers.

Read more

Panos IpeirotisNov 24, 2011 03:11 am GMT3939 views
Extreme Value Theory 101 or Newsweek Researching Minimum Wage on Mechanical Turk


Last week, Newsweek published an article titled The Real Minimum Wage. The results "showed" that Americans are the ones willing to accept the lowest possible salary for working on a task. The conclusion of the article? Americans are more desperate than anyone else in the world.  What is the key problem of this study? There are many more US-based workers on Mechanical Turk compared to other nationalities. So, if you have a handful of workers from other countries, and hundreds of workers from the US, you are guaranteed to find more extreme findings for the US. Why? To put it simply, you are searching harder within the US to find small values, compared to the effort placed on other countries.


Read more

Panos IpeirotisJun 30, 2011 10:08 am GMT5587 views
Mechanical Turk, Low Wages, and the Market for Lemons

I recall a highly talked about presentation (although highly unconventional) by M. Six Silberman whereby he discussed the "Sellers' problems in human computation markets". The basic question: can we protect the workers there from exploitation and from sweatshop salaries? Luis von Ahn posted a similar post on his blog. In the comments of the blog post, someone suggested that the low wages on Mechanical Turk is simply the result of high supply of workers and low demand for their work however I argue that what Amazon Mechanical Turk is today is a market for lemons, following the terminology of Akerlof's famous paper, for which he got the 2001 Nobel prize.

Read more

Panos IpeirotisApr 21, 2011 11:21 pm GMT7325 views
An ingenious application of crowdsourcing: Fix reviews grammar, improve sales!
Distributed Knowledge, Tools
I have been doing research on the economic impact of product reviews for a while. One thing that we have noticed is that the quality of the reviews can have an impact on product sales, independently of the polarity of the review. A review that is well-written tends to inspire confidence about the product, even if the review is negative. Typically such reviews are perceived as objective and thorough. So, if we have a high-quality, but negative, review this may serve as a guarantee that the negative aspects of the product are not that bad after all.

Read more

Panos IpeirotisApr 05, 2011 05:52 pm GMT7127 views
Back to top Search