My guess is that large distributors at least try to find a logic behind their price increase because they deal with larger volumes and foreign suppliers, while the small fish panic and start doubling/triplicating prices based on how they feel from day to day. Plus, consumers here are uneducated and not used to shop around, so they involuntarily fed the small resellers' habit to fix their own prices randomly and not based on a serious market comparison.
The same thing that in a store costs 1x, on the next block costs 1.5x. This is still unbelievable to those like us coming from stable economies where they compete on small cents... in a normal economy they would have closed business long ago if setting prices this way.
However, the crazy inflation is both a result and a cause of this behavior.
For example: suppose you are selling today from a stock of product you bought years ago. How do you decide how to price it? In a normal economy prices wouldn't shift that much, so you'd pick the cost, add taxes, add your reasonable markup, check what your competition is doing and you'd get a selling price.
In Argentine economy the item cost to you is so small today that your markup becomes unreasonable and totally arbitrary, buyers won't shop around too much and other elements factor the buying choice (sellers' reputability, ability to pay cash, ability to pay in quotas, fear to be scammed, availability of an extended guarantee when buying large home appliances, unaccessible item from abroad, embargoed products).