Business Live: Tesla down, GoPro up 10%

Jack Dorsey's other company, the payments processor, saw a 51% improvement for total net revenue in the first quarter of 2016 against the same period last year. 

These were expected after the bell in New York. Standby for updates. 

Quarterly results are out from Yelp.

The user-generated review site had more 100m reviews over the past 12 months. 

Revenue grew 34% year on year for the first quarter, to $158.6m. 

Investors seem a little anxious about Friday morning's non-farm payroll numbers from the US. 

More Americans filed for unemployment benefits in March than in February, and private companies are adding employees a lot more slowly than they have over the past three years. 

One consequence has been that US Treasury bond yields have fallen today to their lowest point in more than two weeks. 

ReutersCopyright: Reuters

GoPro shares are down around 35% percent for 2016, and a staggering 75% over the past 12 months. 

The company's latest camera, the Hero, has not sold well and analysts are expecting a significant loss.  

You may wonder about the headline. 

Well, our colleagues in Australia have this report about a Malaysian woman who's been granted bail after splurging around A$1m on handbags. 

The problem? Her bank, Westpac, had given her an unlimited overdraft...by mistake. She never notified the bank, or indeed the police, and was arrested when she tried to fly back to Malaysia.

Sir Philip Green wrote to the chairmen of the pension and business select committees in the Commons. 

Both chairs have invited him to appear before them to discuss BHS, and his role in the company's ongoing difficulties.

Mr. Green asks Rt Hon Frank Field MP and Ian Wright to act "in a responsible way" and not leap to conclusions. He also seems to indicate he may be less willing to offer assistance to the committees if the "public vilification" continues.    

Ma made his money founding Alibaba, and spent a fraction of his fortune buying the South China Morning Post last year. The BBC's Vincent Ni examines the billionaire's growing press empire. 

Nigerian militants have blown up a Chevron platform in the Niger Delta region, according to a Nigerian navy spokesman, the latest in a spate of attacks on the American producer's facilities. 

Shell and half a dozen other producers have meanwhile closed their facilities in Canada, after wildfire rages across the oil sands region of Alberta. 

Those closures may knock an estimated 640,000 barrels of daily capacity offline. 

And perhaps as a consequence, crude prices have spiked slightly, up about 1%. 

Dave Coplin of Microsoft is at the forefront of efforts to ensure artificial intelligence plays a part in our lives. He described to the BBC's Ed Butler how advanced artificial intelligence is when it comes to translating language:

Quote Message: The way I think about it, it's kind of like schoolboy French. I can use it, I can order a drink, I can get a taxi, I can get to the hotel. I'm probably going to have difficulty to have a really in-depth conversation. from Dave Coplin Microsoft's Chief Envisioning Officer

The way I think about it, it's kind of like schoolboy French. I can use it, I can order a drink, I can get a taxi, I can get to the hotel. I'm probably going to have difficulty to have a really in-depth conversation.

The BBC's Simon Atkinson explores the company's latest expansion effort:

APCopyright: AP

Once a staple of the Walmart shopping experience, greeters stood at the front of each store to, er, greet shoppers. 

But then in 2012 these friendly folks were banished indoors, to be more actively involved in customer service. 

Now, the Walmart Today blog has announced the permanently smiling greeters will be back at the front door, with a dual purpose:

Quote Message: We expect to fill about 9,000 of these new hourly positions that are specially trained to both welcome customers as soon as they walk in and also help deter would-be shoplifters. from Mark Ibbotson EVP - Central Operations, Walmart U.S.

We expect to fill about 9,000 of these new hourly positions that are specially trained to both welcome customers as soon as they walk in and also help deter would-be shoplifters.

Big day for BT. 

The firm vows to hire another 1,000 staff to beef up its broadband division Openreach. 

And the share price rises in response - despite some withering criticism of the former UK telecoms monopoly from two of its competitors. 

Associated PressCopyright: Associated Press

Kraft Foods and Heinz (of ketchup fame) merged last July. Now the cost savings - and America's insatiable appetite for mustard and cream cheese - have driven up shares in the combined food giant. 

The share price rose more than 5% in after-hours trading that followed the company's earnings release yesterday, and this morning they are almost up 4%. 

The firm had apparently saved $225m in costs by the start of April. That's a lot of frankfurters. And ketchup.   

There have been some rather robust debates about executive pay at large firms recently. Think HSBC, Anglo American and BP.

But shareholders at the Ladbrokes AGM have scraped a majority in favour of the bookmaker's pay package for chief executive Jim Mullen (£567,000 for nine months' work) and finance director Ian Bull (£715,000 for all of 2015).

But with 42% of shareholders voting against their suggested salaries and bonuses, it seems not everyone is happy to handsomely reward the men steering through the £2.3bn merger with Gala Coral. 

Getty ImagesCopyright: Getty Images

Japanese Prime Minister Shinzo Abe has said that a UK vote to leave the European Union would make Britain less attractive for Japanese investors.

Mr Abe said during a diplomatic visit to the UK that around 1,000 Japanese companies operate in the UK, and employ about 140,000 people. 

Quote Message: "Japan very clearly would prefer Britain to remain within the EU. British membership is also best for Japanese investors within the UK. Many Japanese companies set up their operations in the UK precisely because the UK is a gateway to the EU. A vote to leave would make the UK less attractive as a destination for Japanese investment." from Shinzo Abe Japanese Prime Minister

"Japan very clearly would prefer Britain to remain within the EU. British membership is also best for Japanese investors within the UK. Many Japanese companies set up their operations in the UK precisely because the UK is a gateway to the EU. A vote to leave would make the UK less attractive as a destination for Japanese investment."