value chain analysis and core competency

Description The c o nc e pt t ha t a c e l l phone i s us e d f or b a s i c communication has undergone a sea change as other va l ue adde d se r vi c es a r e a dded t o t hi s a ma zi ng instrument with an ultimate aim of converting the cell a s a s o ur c e o f c ommuni c a t i o n, k no wl...