【中文版】

土地双向竞价是指土地出让方在公开市场中分别设置出价最高者和最低者的双向竞价方式。在这种方式下，土地出让方会公布土地的基本信息和交易条件，并设置一个最高价和一个最低价。有意向的买家可以在规定的时间内提交出价，出价最高者将获得该块土地的使用权。

这种竞价方式的优点在于能够更好地体现市场供求关系，使土地价格更加合理。同时，设置最低价也能保证土地出让方的利益，防止出现恶意竞争和不正当手段。此外，土地双向竞价还能增加市场透明度，减少暗箱操作和权力寻租等不良现象。

然而，土地双向竞价也存在一些问题。首先，这种方式可能会导致一些有实际需求的买家无法获得土地使用权，因为出价最高者往往是资金实力雄厚的开发商或投资者。其次，这种方式容易导致市场过度竞争，一些买家可能会为了获得土地使用权而不惜代价，导致土地价格过高或资源浪费。

因此，在实施土地双向竞价时，需要制定合理的政策和规定，确保市场秩序和公平竞争。同时，也需要对市场进行深入调研和分析，制定合理的土地出让方案和价格策略，以保证土地资源的合理配置和利用。

【英文版】

What is dual competitive bidding for land? Dual competitive bidding for land refers to a bidding method in which the land seller sets both the highest and lowest prices in the open market. In this way, the land seller公布basic information and trading conditions of the land, and sets a highest price and a lowest price. Interested buyers can submit bids within the specified time, and the bidder with the highest price wins the land use right.

The advantages of this bidding method are that it can better reflect market supply and demand, making land prices more reasonable. At the same time, setting a lowest price can also ensure the interests of land sellers and prevent malicious competition and improper means. In addition, dual competitive bidding for land can increase market transparency, reduce bad phenomena such as dark-box operations and rent-seeking by power.

However, dual competitive bidding for land also has some problems. Firstly, this method may cause some buyers with actual needs to be unable to obtain land use rights, because the bidder with the highest price is often a well-funded developer or investor. Secondly, this method can easily lead to excessive competition in the market, and some buyers may不惜代价to obtain land use rights, leading to excessively high land prices or resource waste.

Therefore, when implementing dual competitive bidding for land, it is necessary to formulate reasonable policies and regulations to ensure market order and fair competition. At the same time, it is also necessary to conduct in-depth research and analysis of the market, formulate reasonable land sale plans and price strategies to ensure the reasonable allocation and utilization of land resources.