01357nas a2200241   4500000000100000000000100001008004100002260001200043653000800055653002000063653000900083653001500092100002200107700001700129700001900146700001900165245008300184856008800267300000900355490000600364520073100370022001401101       2015                            d  c03/201510aICT10aDigital Economy10aRisk10aVolatility1 aFrancisco Mochón1 aSonia Benito1 ade Rebeca Juan1 aRicardo Gómez00aDifferences in Measuring Market Risk in Four Subsectors of the Digital Economy  uhttp://www.ijimai.org/JOURNAL/sites/default/files/files/2015/02/ijimai20153_2_1.pdf  a9-160 v33 aThis paper defends the wisdom of not considering the Digital Economy to be one homogeneous sector. Our hypothesis is that it is best to consider it the result of adding four different subsectors. We test whether indeed the economic and financial performance of a portfolio of listed companies in each of the four subsectors presents relevant differences. We use the value at risk measure to estimate market risk of the four subsectors of the digital economy. The riskiest subsector is Mobile/Internet Contents & Services followed by SW&IT Services and Application Software. On the contrary, the Telecom sector is by far the safest one. These results support the hypothesis that the Digital Economy is not a homogeneous sector.  a1989-1660