There is no set number some years more some less but usually no more than 7 or 8 depending on price and size some years as few as 5. Because grand parents give gifts then aunts uncles and god parents so in the end it adds up to about 20 gifts total
1. BEST BUY - LifeMold Silica Free Alginate 3-4 Min Set - 1lb
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2. how good are kohler faucets?
they range in price the ones sold as stock items in home depot and Lowe's type stores are not the same quality as the special order ones ,i learned my lesson the hard way with that when after one year i was holding the lever to my kitchen faucet in my hand and water was spewing all over my kitchen-lesson learned you get what you pay for and always look for solid brass internal workings
3. Good gaming laptop for around this price?
Actually that laptop is actually pretty good for it's price.
There's nothing more I can see immediately that can match that on the same price or lower
4. Surface pro 4 or MacBook Pro/air for college?
I was a geology major / biology minor and I would say that more people tended to use Macs.
I think part of it is independent of major in terms of ease of use, but a lot of graphic processing is better on Macs, and at almost all colleges and universities, the computers in an average IT lab will be PC's, so you can get whatever word processing advantages on those computers. I do not use really any software that's exclusive to one OS or another, but as someone who grew up using PC's and then switched to a Macbook for undergrad, I have not regretted that with the exception of not being able to game, but then again, you need a spec would out PC for that anyway. If price is not an issue, I would say to go with a Mac, but be aware that you may have more issues with crossover when you are doing stuff like presentations because most of those will be on PC's, so you do need to at least be aware of that.
You might also want to get your own adapters for PC-to-Mac stuff because they are less common. The Surface is definitely a good PC though, and one of the ones that can absolutely keep up with a Mac, but it's price range makes it such that it's not a common computer on my campus anyway.
5. What is the order flow imbalance?
They are mainly two kinds of imbalances that are important in the price formationIt is quite obvious that these two imbalances are shaping the prices: if you do not change liquidity offering, the more buying consumers and the higher to price will go up (same for sellers and the price going down). And if you do not change the conuming flow, the liquidity provision imbalance will lead one queue to depletes before the other, driving the price up or down.Moreover, you have to keep in mind that, since the best strategy to buy or sell a large quantity of shares or contracts is to split them (according to a balance between trading costs and opportunity costs), and because trading algorithms (and traders) mix limit and marketable orders in LOBs, the same "agent" usually contributes to both: a buying agent will provide liquidity at the bid and consume some at the ask during the same day: these effects are deeply mixed. The point is how to to capture these imbalances with not too noisy estimators.The intrication of both imbalances are captured by the Queue Reactive (QR) model, linking the flows (or liquidity providing orders, but also of liquidity consuming orders) with the state of the orderbook.The Order Flow Imbalance being the infinitesimal increment of liquidity provision, it is linked with the orderbook imbalance (ie if you sum the OFI between $t_0$ and $t_1$ you obtain the difference between the quantities on the two orberbooks: $OB_1-OB_0$).
It is clearly capturing a part of the formation process. Moreover, because of the relation $OFI(t_0\rightarrow t_1)=OB_1-OB_0$, it can be used to describe the trajectory of the orderbook in a bid-ask quadrant: put the quantity at the bid on the x-axis and the quantity at the ask on the y-axis:This view has some limitation: it has been shown by the QR Model that the first limit is not enough, and that the "jumps" consecutive to the full depletion of one of the two queues (first bid or first ask), is conditioned by the shape of the orderbook.In the second edition of Market Microstructure in Practice (L and Laruelle, 2018) the chapter "The Price Formation Process and Orderbooks Dynamics" describes all this in detail.