Second, there is the view that worksharing discounts are needed to make the postal service more competitive, thus helping to stave off threats from competing carriers and electronic substitutes.
Electronic substitutes are email and video conferencing.
mnli hypothesis: Electronic substitutes are email and video conferencing. premise: Second, there is the view that worksharing discounts are needed to make the postal service more competitive, thus helping to stave off threats from competing carriers and electronic substitutes.