# zLP Staking

The Liquidity Provision model for $ZERO is specifically designed for users who contribute to liquidity pools. When users stake zLP tokens, their $ZERO portion is effectively doubled in value for staking purposes.

### **Enhanced Weighting for $ZERO**

A distinctive feature of the zLP ve-staking model is the enhanced weighting given to $ZERO tokens at the time of staking. When calculating the value of a user's contribution to the liquidity pool, the $ZERO component is effectively considered to double its presence in the pool. 

**Example:** If a user's liquidity pool token consists of 50% $ZERO and 50% $ETH, the weighting mechanism acknowledges the $ZERO component as if it were 100% of the contribution. 

{% hint style="info" %}
When staking is locked, the zLP weighting for $ZERO is counted as double its amount in the liquidity pool token.
{% endhint %}

### **Calculation Method**

$veZERO earned is the product of the quantity of zLP tokens staked and a locking factor $$L\_{zLP}$$. As mentioned already, $ZERO tokens in the zLP stake are given double weight. Hence, $$(2 \times $\textrm{ZERO})$$. 

$$
$\textrm{veZERO} =  zLP \times L\_{zLP}
$$

$$
$\textrm{veZERO} = (2 \times $\textrm{ZERO}*2) \times L*{zLP}
$$

### Time-Locking Coefficients

Another distinctive feature of the zLP ve-staking model is time-locking coefficients. ZeroLend modifies the time-locking coefficients for zLP stakes to suit the unique risk profile of liquidity pool tokens. The following is the time scale for zLP:

| Time Lock | L\_dLP - Value |
| --------- | -------------- |
| 1-Months  | 0.0625         |
| 3-Months  | 0.25           |
| 6-Months  | 0.5            |
| 12-Months | 1.0            |

This adjusted time scale reflects the nuanced differences in risk profile compared to staking single assets.

#### Practical Example

A user staking 10,000 zLP tokens, split into 5,000 $ZERO and an equal value of $ETH for a 6-month period, will be allocated 5,000 $veZERO. 

**The formula for $veZERO Allocation:**

The total $veZERO a user receives is determined by:

$$
$\textrm{veZERO} = $\textrm{ZERO} \times L\_{ZERO} + zLP \times L\_{zLP}
$$

In this equation:

* $$L\_{ZERO}$$ and $$L\_{zLP}$$ represent the time-locking coefficients for single-asset $ZERO and zLP stakes, respectively.
* $$zLP$$ is valued as twice the amount of $ZERO present at the time of staking.

To clarify, the formula accounts for the different quantities of $ZERO in single and dLP stakes:

$$
$\textrm{veZERO} = $\textrm{ZERO}*1 \times L*{ZERO} + (2 \times $\textrm{ZERO}*2) \times L*{zLP}
$$

Here, $$$\textrm{ZERO}\_1$$ and $$$\textrm{ZERO}\_2$$ denote the respective amounts of $ZERO in single staking and within the zLP.