Re: question about Kiva loan ranking algorithm

[Noah Balmer]

Popularity is a little nebulous, but it's calculated based primarily on funding rate and age.  Loans that have just been posted get a high score, and loans that are funding quickly get a high score.  Scores are regenerated about every 5-10 minutes.

I just looked at our code from last April.  The only new sort option we've added since then is "Random." "Expiring Soon" has been an option since mid 2009 if not before, thought I think it might have been a little hard to find at one point while we were working on a redesign.

On Thu, Mar 28, 2013 at 5:08 PM, Song Yao <son...@gmail.com> wrote:

Dear all,

I am an economist at Northwestern University.  I am working on a project using Kiva data, with the hope that my research can help improving the practice of Kiva. I have a few questions about Kiva's ranking methods for loans.  I tried to search for the answer at several places (including this forum) but with no luck.  I really appreciate any insights or advice about where to find the answers.  In particular,

When ranking loans at Kiva, I see the options are "Random", "Popularity", "Loan Amount", "Amount Left", "Repayment Term", "Expiring Soon" and "Most Recent".

1. How is the "Popularity" ranking determined at Kiva?

2. During April - June 2012, what rankings options did Kiva use?  We collected the data during that period.  But it seems now Kiva added different ranking approaches over time.  For example, as a seasoned Kiva lender myself, I don't recall "expiring soon" was always an option for ranking loans.

Thank you very much!

Best,

Song

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