Tuesday, February 23, 2016

Zappity's Adventures: Trading and the importance of item selection

I have been pretty busy lately, logging in mostly for trading. But even this became a bit much a bit much and I decided it was time to take a close look at what was taking up time.

I trade almost exclusively in T2 modules, T2 ships and pirate ships. This gets expensive because I like to keep each station well-stocked to reduce jump freighter runs and this had resulted in the accumulation of lots of inventory items.

Both stations I trade in had roughly 30b on the market plus roughly the same stocked in the station, waiting to be listed when the order was depleted. Inevitably, all my stuff will be trapped in a station one day and I will have to resort to a slow sell. Such is life until citadels arrive and then all my loot will be transported to an NPC station at the cost of a release fee. I don't know which is preferable to be honest. But it will be fun.

But to get back to the matter at hand, I decided it was time to assess my items. I keep a database of all transactions so I was able to write a simple script to calculate the income from each item over the last three months. Here is a chart showing the income distribution of the 370 items I have been trading recently:


Clearly, there are some winning and some losing items. Some simple statistics:

                 Item #  Sum               % of Total
Total            370     170,799,996,434   100%
1st Quartile     93      167,690,548,430   98%
Median           185     155,938,328,213   91%
3rd Quartile     276     128,339,927,851   75%

It is pretty straightforward. I sold 170b of items, ‘1st Quartile’ just means the bottom 25% of items (sorted by income yielded by that item), ‘Median’ is the halfway mark, and ‘3rd Quartile is the 75% mark.

The sum column is interesting. This is the total of all sales ABOVE the cutoff, meaning that if I had not traded the items below the cut-off at all, this is the income I would still have derived. The last column shows this as a percentage of the total. What this means is that I can delete the bottom quartile (93 items) from my inventory and suffer only ~2% lost revenue. Similarly, I can delete half my inventory for ~9% lost revenue. And, as it turns out, free up about 20b by selling items I no longer need to inventory.

Cool. Let’s do that.

So what, I hear you ask, are the best items? Well because I am a meanie I am not going to tell you that. However, I AM going to tell you what the worst items are. Bear in mind that these are from a sov null perspective. Lowsec, or even a different type of alliance, would no doubt be different. Still, there were a few surprises for me.

Lower median items: http://pastebin.com/NY8c1GZh

Ironically, it will no doubt take a lot of effort to sort everything out and move the excess, non-traded items back to Jita!

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