(Wines&Vines) - Government policies are critical to the success of wine industries around the world, according to a three-year study of wine industries and winery clusters from Algeria to Washington state. Earlier this year a survey of 33 of wine industry representatives from around the globe found that terroir and proximity to large urban markets were the top two factors in the success of global wine industries. The findings came as part of the final phase of a three-year research study associated with a $3.4-million research project into biomarkers (see “Attitudes Toward Wine Technology Studied.”)