Struct BullwhipEffect 

pub struct BullwhipEffect { /* private fields */ }

The Bullwhip Effect: Variance amplification in supply chains.

Demand variance amplifies as you move upstream in a supply chain: Var(Orders) / Var(Demand) ≥ 1

The amplification factor depends on lead time, order batching, price fluctuations, and demand signal processing.

Implementations

impl BullwhipEffect

pub fn new() -> Self

Create a new Bullwhip Effect equation.

pub fn amplification_factor(&self, lead_time: f64, review_period: f64) -> f64

Calculate the minimum amplification factor for order-up-to policy.

Arguments

• lead_time: Lead time in periods (L)
• review_period: Review period (p)

Returns

Minimum variance amplification factor.

pub fn multi_echelon_amplification( &self, lead_times: &[f64], review_periods: &[f64], ) -> f64

Calculate total variance amplification across n echelons.

Trait Implementations

impl Clone for BullwhipEffect

fn clone(&self) -> BullwhipEffect

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BullwhipEffect

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BullwhipEffect

fn default() -> Self

Returns the “default value” for a type.

impl GoverningEquation for BullwhipEffect

fn latex(&self) -> &str

Get the LaTeX representation of the equation.

fn class(&self) -> EquationClass

Get the equation’s classification.

fn citation(&self) -> Citation

Get the primary citation for this equation.

fn variables(&self) -> Vec<EquationVariable>

Get all variables in this equation.

fn description(&self) -> &str

Get a human-readable description.

fn name(&self) -> &'static str

Get the equation name.

fn validate_consistency( &self, values: &[(&str, f64)], tolerance: f64, ) -> Result<(), String>

Validate that a set of values satisfies the equation within tolerance.