Design a webhook that notifies the merchant when the payment succeeds. We need to aggregate the metrics (e.g., success vs. failure) and display it on the dashboard.

Initiating a conversation with strangers is the biggest social fear. Actually, people often appreciate it when you make an effort to speak with them. Here we provide some ideas on how to start a small talk, what we should talk about and how to end it in a courteous way.

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Amazon's ambition to gain a share of all economic activities led it to enter the grocery service market. However, based on an analysis of Amazon's existing strategy and the cost disadvantages in fresh produce, it does not currently have a first and best supplier in grocery. Acquiring Whole Foods allowed Amazon to not only buy a retailer but also gain a customer for its existing business.

Requirements

Requirements

Steve Jobs coined the phrase “bozo management”. Bozos referred to the professional managers who know how to manage but don’t know how to DO anything. It turns out the best managers are great individual contributors who never ever want to be a manager but decide to be one.

What is DIF?

Driven by the goal to take a cut of all economic activity, Amazon decides to develop grocery services. However, its grocery business has no first-and-best customer due to cost disadvantage. By acquiring Whole Foods, Amazon is buying more than a retailer - it’s buying a customer.

Representative heuristics are one of the methods people use to judge probabilities and valuations. During this process, people often mistakenly equate representativeness with probability. To better assist in probability judgments, the following factors should be considered: base rates, sample size, correct understanding of odds, predictability, caution against overconfidence leading to an illusion of validity in predictions, and regression to the mean.