Complex sentence: Conversely, where there is "imbalance" in market participants--as in the public sector in many nations; a large purchaser of infrastructure products and services--leading practice discovery is impeded which results in higher cost to the public sector.
Split into simpler sentences: Conversely, where there is "imbalance" in market participants--as in the public sector in many nations; a large purchaser of infrastructure products and services--leading practice discovery is impeded. This imbalance impedes leading practice discovery which results in higher cost to the public sector.