There's trouble brewing in India's tea industry. Tea production is one of India's biggest industries. But it's struggling in the face of increased competition from Africa. Rahul Tandon reports from the tea estates of Assam, where tea pickers demand higher wages, but producers worry about rising costs and falling global prices for tea.

(Photo: Tea pickers in Assam, India, Credit: Getty Images)

The developing world's favourite chat app is accused of spreading malicious rumours. In India the rumours led to the lynching of people falsely accused of child abduction, while in Uganda the government has introduced a controversial tax on social media platforms to stop alleged political gossip.

Ed Butler visits Kampala where he discovers how popular the app is, both for socialising and for business. Meanwhile Rahul Tandon reports from Kolkata on the unnervingly fast spread of the app across India. Plus Samantha Bradshaw of the Oxford Internet Institute explains what makes Whatsapp particularly well suited for lower income countries.

(Picture: Ugandan woman with painted nails using a cell phone; Credit: Godong/UIG via Getty Images)

How is political turmoil hitting tourism and the economy in Nicaragua, and where will it all end?

President Daniel Ortega has faced months of mass protests, which have been met with violence by pro-government paramilitary groups, resulting in some 275 deaths. The president has also lost the support of much of the business community.

Caitlin Pierce reports from the troubled country on how the once-booming tourism sector is coping. And back in London, Ed Butler speaks to Manuela Orozco of think tank Inter-American Dialogue, and to Nicaraguan opposition leader Juan Sebastian Chamorro.

(Picture: A student wearing a gas mask marches demanding the resignation of President Ortega; Credit: Marvin Recinos/AFP/Getty Images)

Skincare is a multi-billion-dollar industry. But do skincare products really work? Vishala Sri-Pathma hears from Amy Elizabeth, a beauty expert at the shopping channel QVC, and dermatologist Dr Anjali Mahto. And Tim Caulfield, professor at the University of Alberta in Canada and author of the book Is Gwyneth Paltrow Wrong About Everything? explains why people still buy beauty products even through they know many of their scientific claims are wrong.

(Photo: Woman with clay face mask, Credit: Getty Images)

Designers and retailers have long thought of the plus size market as high-risk. Predicting what these customers will buy can be difficult, as they tend to be more cautious about styles.

Making larger clothes can be more expensive; higher costs for fabric cannot always be passed on to consumers. In turn, plus-size women shopped less because the industry was not serving them well.

Louise O'Reilly is one of Europe's best known plus-size models. She runs a fashion blog called Style Me Curvy, and she says women need to feel good about themselves before they will lose weight.

Weight loss expert Steve Miller, who lost several stone himself and now helps others to do the same, says pandering to the overweight is bad for their health.

Jacqueline Windsor, a partner at accountants PwC, says retailers may be waking up to the opportunity of styling for larger sizes. Vishala Sri Pathma presents.

(Picture: plus size fashion model in blue dress outdoors. Credit: Getty Images.)

Almost all offices have them. The person whose self-belief exceeds their abilities, who belittles their co-workers, and who considers themselves so special and unique, they're left infuriated when others fail to recognise them.

We're talking about the office narcissist. Tim Judge, an organisational and leadership psychologist at the Ohio State University, tells us how to spot one.

Karlyn Borysenko, author of a book called Zen Your Work, found herself working for what she later realised was a narcissistic boss. She said she had to make use of a number of strategies to cope.

And Don Moore, professor at the Haas Business School, says that while self confidence is ok, overconfidence destroys businesses and politics.

(Picture: A woman kissing a mirror; Credit: Getty Images)

Can AI takeover from the traditional job interview? Ed Butler speaks to Tomas Chamorro-Premuzic, professor of business psychology at University College London and chief talent scientist at Manpower, about the shortcomings of the traditional interview, and to Kevin Parker, CEO of HireVue - a firm that employs artificial intelligence to conduct remote video interviews for major companies. And Victoria McLean, boss of CityCV, defends the face-to-face interview.

(Photo: A robot job interviewer, Credit: Getty Images)

Young people may be turning their backs on the traditional TV set, but is it stimulating a golden age of drama?

Netflix, YouTube and Amazon are better at grabbing our attention via our phones and computers than the screen sitting in the corner of our living rooms. Manuela Saragosa asks how this is transforming the creativity of TV-making, whether it is leading to unhealthy binge-viewing, and if it will kill off the job of the TV channel scheduler.

Programme features Christoph Klimmer of TV streaming service Xstream, and Amanda Lotz of the University of Michigan. Produced by Laurence Knight.

(Picture: Abandoned TV; Credit: tacojim/Getty Images)