The phrase "expansive market" is correct and usable in written English.
You can use it when you are speaking about a very large market that is full of many different opportunities. For example, "The tech industry has an expansive market, offering a variety of different products and services."
EpiPen's popularity increased dramatically after Mylan embarked on an expansive marketing campaign.
Mr. van der Steur said that the main problem with the current policy was that marijuana production had led to the creation of an expansive black market.
They are also investing in the manufacturing of products like electronics and chemicals to gain a foothold inside Europe's expansive single market.
China is already investing in the production of chemicals, electronics and other products in the region, which is attractive because of labor costs lower than those in Western Europe; a young, highly skilled work force; and access to the European Union's expansive single market.
Rather, Ulbricht is alleged to have knowingly and intentionally constructed and operated an expansive black market for selling and purchasing narcotics and malicious software and for laundering money.
In 1786, Jefferson, then the American minister (or ambassador) in Paris, met Maria Cosway, a 27-year-old English-born, Italian-educated painter, at the Halle aux Bleds, the new and expansive grain market in central Paris.
They are also the generation whose work can be seen as providing the bridge to the renaissance of content and pictorialism that has flourished in the globally expansive art markets of these first decades of the new century.
[LAYERS: Supergalactic Expansive].
Next, we visited the Mercado Municipal Paulistano — the São Paulo Municipal Market — an immense, neo-Classical building that houses an expansive indoor food market.
DeVos defended the D.C. program, saying it is part of an expansive school-choice market in the nation's capital that includes a robust public charter school sector.
