Display ads generate about US$25 billion a year through sales of “impressions” – a pair of eyeballs on an online advertisement that can be a banner, video or non-text-based promotion. But these impressions are unpredictable, change over time and cannot be stored. So how can publishers maximise their profits? Ying-Ju Chen investigates the issue and proposes a ... Read More

In the technological olden days – before 2000 – when everyone used 56k modem dialups or the equivalent and their main activities were e-mailing and web browsing, the pricing options for internet service providers (ISPs) were pretty straightforward: they charged by time usage. But all that has changed with the introduction of more applications that require ... Read More

Agriculture long ago declined in importance in developed economies, but in the developing world it remains the dominant sector. However, its development is hindered by low productivity. To overcome this, non-governmental organizations and for-profit social enterprises provide learning opportunities for farmers. The recent voice-based information service ... Read More

On the phone trying to get through to a call center, queuing at an ATM… it’s all a part of daily life. But how do potential customers deal with this? Do they decide to join the queue? Do they switch to an alternative service provider that offers a shorter waiting time? On what do they base their decision? Uncertainty and information scarcity typically make ... Read More