Ruby survives on affection, not utility. My little theory is that the concept of "imprinting" in psychology can just as easily be applied to programming: Much as a baby goose decides that the first moving life-form it encounters is its parent, embryonic programmers form ineradicable attachments to the patterns and quiddities of their first formative language. Because if/when the machines take over, we should at least speak their language. For many people, that language is Ruby. It's often credited with making programming "click"; imprintees speak of it with a certain indebtedness and affection.

From robot vacuums to Dyson stick vacs, don't miss these Cyber Monday vacuum deals happening on our favorite vacuums in every category. There's a lot of shopping you can do this weekend, but these Cyber Monday vacuum deals are ones you shouldn't skip if you need any kind of cleaning upgrade. Changing to a stick vacuum hugely improved my life after moving to a three-story home, but all kinds of vacuum types can turn your life around. Never have time to vacuum or mop? You'll want a handheld vacuum .

These smart bird feeders use connected cameras to capture up-close images and videos of visiting birds. We may earn revenue from the products available on this page and participate in affiliate programs. Birds are difficult to photograph. They move quickly, arrive sporadically, and have an uncanny knack for avoiding the camera. Birdfy's smart bird feeders make it easy to capture photos and videos of your feathered friends with a connected camera.

When you purchase through links in our articles, we may earn a small commission. Make the holidays last all year round with these eye-catching permanent outdoor lights, all steeply discounted for Cyber Monday. Dread the prospect of climbing a ladder each winter to hang string lights from your eaves? With a set of permanent outdoor lights, you only must risk life and limb once to keep your home lit with holiday cheer. These twinkling smart lights are designed to stay put all year round.

Amazon's Cyber Monday sale drops prices on tons of its most popular and best-reviewed products. Get all your holiday shopping done now. We may earn revenue from the products available on this page and participate in affiliate programs. The Sunday scaries don't exist on the day before Cyber Monday . In fact, the only fear you should have right now is that you'll miss out on the best deals on the biggest online shopping day of the year.

Gear Amazon's Cyber Monday deals on Celestron Telescopes make this a perfect time to start stargazing Whether you want a basic scope or a more advanced system, Amazon has tons of Celestron models for the lowest prices of the year during Cyber Monday. We may earn revenue from the products available on this page and participate in affiliate programs. Whether you're finally ready to point a telescope at the Moon or you want to upgrade to a more powerful rig for deep-sky objects, these Celestron telescope and accessory deals cover just about every level of backyard astronomer. This is a great option for users at any level. If you want your first "real" telescope but don't want to spend your nights guessing which fuzzy blob is which, this is the one to grab.

We study the behavior of for-profit institutions that broadcast reputations to foster trust among market participants. We develop a theoretical model in which buyers and sellers are matched on a platform to engage in transactions involving a moral hazard: sellers can either faithfully deliver goods after receiving payment, or not. Although the buyer does not know a seller's true type, the platform maintains a reputation system that probabilistically assigns binary reputation signals. Buyers make purchase decisions based on reputation signals, which influence the payoffs to sellers who then adapt their type over time. These market dynamics ultimately shape the platform's profit from commissions on sales. Our analysis reveals that platforms inherently have an incentive for rating inflation, driven by the desire to increase commission. This introduces a second layer of moral hazard: the platform's incentive to distort reputations for its own profit. Such distortion is self-limited by the platform's need to maintain enough accuracy that trustworthy sellers remain in the market, without which rational buyers would refrain from purchases altogether. Nonetheless, the optimal strategy for the platform can be to invest in order to reduce signal accuracy. When the platform can freely set commission fees, however, maximum profit may be achieved by costly investment in an accurate reputation system. These findings highlight the intricate tensions between platform incentives and resulting social utility for marketplace participants.

We develop pre-trained estimators for structural econometric models. The estimator uses a neural net to recognize the structural model's parameter from data patterns. Once trained, the estimator can be shared and applied to different datasets at negligible cost and effort. Under sufficient training, the estimator converges to the Bayesian posterior given the data patterns. As an illustration, we construct a pretrained estimator for a sequential search model (available at pnnehome.github.io). Estimation takes only seconds and achieves high accuracy on 12 real datasets. More broadly, pretrained estimators can make structural models much easier to use and more accessible.

Gear Computers Laptops Amazon just unleashed its Cyber Monday laptop deals and it's dropping prices on MacBooks, gaming PCs, and more Whether you need a basic everyday driver or a full-featured gaming PC, Amazon's Cyber Monday laptop can save you cash. We may earn revenue from the products available on this page and participate in affiliate programs. A laptop is a big investment. Not only do they typically cost a lot of money, but you're committing a machine you'll stare at while you shop, do homework, remote work, game, and pretty much everything else in your online life. Amazon just dropped its Cyber Monday deals on laptops and these are some of the lowest prices we have seen all year.

Tired of watching your favorite movies through the tinny built-in speakers on your TV? Cyber Monday is the perfect time to upgrade your TV room with a new soundbar, a simple addition that can revolutionize everything you watch. We found a variety of discounts on everything from budget-friendly standalone bars to expansive home theater systems with premium bars at the center. Our favorite soundbar for most people, the Yamaha SR-C30A, hits its lowest price in the last 30 days for Black Friday and Cyber Monday at just under $220 from Amazon . What it lacks in high-end features, it more than makes up for with its super simple and compact setup, and the sound quality is more than good enough for your weekly movie night. It even has a wireless subwoofer, so you get all the benefits of dedicated bass without having to run wires across your living room.