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March 24, 2014

Fantasy Freestyle

Is it Really All Currency?

by Jeff Quinton

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Is it really all currency?

Acquire the most talent for as long as possible as cheaply as possible. Put differently, acquire the most value first, and then worry about filling needs later. “It’s all currency” is common wisdom in the sports world and the fantasy sports world. In theory, if player A is worth $15 and fills a need and player B is worth $20 and is redundant, player B should be selected and traded for $20 worth of need. In theory, player B can be traded for player A and an extra $5 of value. “In theory” works for nerds like me in lecture halls and the words in books, but when you are out in the real world playing a game on the internet based on a kid’s game being played by grown men called fantasy baseball, theory does not always hold. The “always take the most value regardless of need approach” is based on two assumptions that do not necessarily hold in every league in the fantasy baseball world. Those two assumptions are below:

  1. Every fantasy baseball league is a perfectly competitive market, meaning buyers and sellers are always available to meet respective supply and demand
  2. All owners are perfectly rational, perfectly self-interested, and have perfect self-control, meaning that owner will always be willing to trade one dollar of value for two dollars of value

When these assumptions hold or hold for the most part, you should always take the most valuable player (player B in our example). Similarly, there is often profit to be had in taking on excess value in trades and flipping them for larger profits elsewhere. However, when these assumptions do not hold, which they often do not, there may be instances where you are better off taking need over redundant value or devaluing excess value in trades. In being able to identify what causes these assumptions to not hold, we will be able to make better decisions. The most common reasons are below:

Limited Supply and Demand: Unless you play in a league with 50-plus teams, there is going to be limited supply and demand. This means that even if you are willing to accept market value to sell a $20 outfielder or offer market value to buy a $20 outfielder, there is a chance that there will not be respective buyer or seller. The smaller the league and the fewer number of owners that are actively willing to make trades in any league, the more likely this scenario is encountered.

Endowment Effect: A phenomenon of behavioral economics, the endowment effect states that people will value “object X” more if they possess “object X” than if they do not possess “object X.” While I am certainly not the first to mention the endowment effect’s impact on fantasy baseball, it is important to note how big an impact the endowment effect has on the trade market. In fantasy baseball terms, we require more to trade away Alex Gordon than we do to trade for Alex Gordon. Each owner and each league will be affected by the endowment effect to a different extent. The owners who are very affected by this effect are the owners who rarely make trades or only make incredibly lopsided trades. The more of these owners in a league, the more difficult it is to trade excess assets for equivalent value.

League Norms: Each league has its own norms. In some leagues, owners will not make trades until right near the trade deadline. In others, minor leaguers are undervalued by the majority of owners. Sometimes these norms, such as the ones previously listed, will restrict trade. By knowing your league’s norms, you will be better able to properly value potential trade assets.

Trade Relationships: Especially in larger league, most owners will only have active trade communication with a fraction of the owners. Consequently, supply and demand will be limited, not by availability, but through inactive trade relationships.

Should you move the best player in the deal for a bunch of parts with the intention of trading some of those parts? Should you draft a player that will help your team win right now or a better player that will not be up until late next season? Should you pick up a shortstop to stash on the DL with the intentions of trading him or your current shortstop once he is active? These answers all depend on your league’s trade market. The more difficult it is to trade a player in a given league, the less valuable redundant talent becomes. It is tempting to make decisions based on how things should be, but the next time you face such a decision, make sure you are building your league’s actual trade market and culture into account.

Jeff Quinton is an author of Baseball Prospectus. 
Click here to see Jeff's other articles. You can contact Jeff by clicking here

Related Content:  Trades,  Fantasy

6 comments have been left for this article. (Click to hide comments)

BP Comment Quick Links


Good article. My favorite takeaway from this is the need to better consider value of redundant talent.

Mar 24, 2014 08:26 AM
rating: 1
BP staff member Jeff Quinton
BP staff

Thanks. I find it tough because each situation is unique, but this is kind of where I start my process regarding redundant talent.

Mar 24, 2014 09:13 AM

One unmentioned advantage to having redundant talent is that if I have a good player on my bench, no one else can play him.

I have been known to grab a player who I don't really need, just to keep him away from a competitor who has a gaping hole at the position.

Of course, if I can trade him to improve my team, I should. But if I can't conjur up anything enticing, there is no harm in having a good player on my bench in case of an injury.

Mar 24, 2014 09:27 AM
rating: 3
BP staff member Jeff Quinton
BP staff

Very good point. Rostering a redundant player so that the rest of the league cannot gain from him production can be an optimal strategy depending on the circumstances.

Mar 24, 2014 09:43 AM

there's also some owners with the conscious or subconscious idea that a good player on someone's bench isn't as good as he truly is, just because he is on the bench.

Jan 12, 2015 07:11 AM
rating: 0

I think Javier Baez has the largest Endowment Effect.

Mar 24, 2014 13:29 PM
rating: 1
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