The S&P 500 is closing in on its all-time high, and is likely to sail past it, as long as the Fed promises lower interest rates and the trade war calms down.Market Insiderread more
In a tweet, Trump said that he and Xi "had a very good telephone conversation," and that "our respective teams will begin talks prior to our meeting."Politicsread more
A Bloomberg News report Tuesday morning said the White House had looked at such a move in February.Marketsread more
President Donald Trump on Tuesday announced that he will not nominate acting Defense Secretary Patrick Shanahan to hold the position in a permanent capacity. Army Secretary...Politicsread more
Stocks surged after President Donald Trump said he will be meeting with his Chinese counterpart, Xi Jinping, at the upcoming G-20 summit.US Marketsread more
The move is part of a larger trend that saw the survey's 179 participants move away from risk and toward positions that reflect fear of a coming economic slowdown spurred by a...Marketsread more
Democratic frontrunner Joe Biden on Monday appealed to a billionaire Republican donor for fundraising help in his presidential campaign. But the financier, Trump-supporting...Politicsread more
Facebook and other groups are behind a new programming language for working with the Libra blockchain.Technologyread more
Tesla investors are regaining confidence in a quieter Elon Musk — even as they question the company's ability to hit its production goals for the second quarter.Autosread more
Long-time blockchain technologists say Facebook's Libra digital currency will introduce billions to cryptocurrencies, but the company's problems with trust and privacy remain...Technologyread more
Valisure, an online pharmacy company, told the FDA that high levels of dimethylformamide were found in valsartan, a drug produced by Swiss drugmaker Novartis and other...Health and Scienceread more
The coldness of winter means people are staying indoors, sitting on couches ... and ordering food delivery. But does knowledge that delivery men are trudging through awful conditions affect tips consumers give? Does the winter bring a pickup in generosity, and is that pickup split evenly across the country? More interestingly, can specific food items ordered help predict the size of the tip?
For a deeper look at the intersection of food, generosity and economics, we turned to the data pros at online food ordering site GrubHub, who analyzed winter tipping behaviors for CNBC.
There may even be a connection between best-tipping city Denver and the legalized use of recreational marijuana in that state. But more on that later.
First, we looked at the type of food items that see the biggest pop in orders as temperatures drop.
Turns out junk food such as pizza slices help predict the biggest tips. When slices are included in an order, tips rise significantly from the 13.9 percent year-round national average to 16.4 percent, a full half-point ahead of all other foods ordered. Pizza was the only food item to pocket a tip over 16 percent.
Breakfast items also help signal bigger tips, in part because even a buck tip on a small order can have a big impact. As one economic analyst suggested, "Breakfast tips percentage-wise are pretty impressive, but that's what tipping a dollar on a bagel will do."
Beyond just food items, some cities tend to tip better than others for all kinds of goods and services. The best tipping city in the winter is none other than Denver, according to GrubHub. With an average tip of 15.7 percent during the winter, Mile High residents tip a full 60 basis points higher than the next best tipping town.
Given Colorado's legalized recreational use of marijuana, you can't help but imagine connections among marijuana consuming regions, home delivery and specific foods that signal tipping generosity, including pizza.
So if the best tipping city is Denver, and ordering pizza predicts the largest tips, we can attempt to predict the future and wonder if delivery businesses will experience a boon as recreational marijuana use becomes legalized across the country.
Beyond Denver, the next-best tipping towns tend to be in places such as Texas, Virginia and Tennessee. Sort the table below to see the top city rankings for tips.