diff --git a/src/de/impls.rs b/src/de/impls.rs
index bfad1e07..73ee53ee 100644
--- a/src/de/impls.rs
+++ b/src/de/impls.rs
@@ -3,6 +3,8 @@ use std::hash::Hash;
 use std::marker::PhantomData;
 use std::num::FromPrimitive;
 use std::path;
+use std::rc::Rc;
+use std::sync::Arc;
 
 use de::{
     Deserialize,
@@ -650,3 +652,31 @@ impl Deserialize for path::PathBuf {
     }
 }
 
+///////////////////////////////////////////////////////////////////////////////
+
+impl<T: Deserialize> Deserialize for Box<T> {
+    fn deserialize<D>(deserializer: &mut D) -> Result<Box<T>, D::Error>
+        where D: Deserializer,
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(Box::new(val))
+    }
+}
+
+impl<T: Deserialize> Deserialize for Arc<T> {
+    fn deserialize<D>(deserializer: &mut D) -> Result<Arc<T>, D::Error>
+        where D: Deserializer,
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(Arc::new(val))
+    }
+}
+
+impl<T: Deserialize> Deserialize for Rc<T> {
+    fn deserialize<D>(deserializer: &mut D) -> Result<Rc<T>, D::Error>
+        where D: Deserializer,
+    {
+        let val = try!(Deserialize::deserialize(deserializer));
+        Ok(Rc::new(val))
+    }
+}
diff --git a/src/ser/impls.rs b/src/ser/impls.rs
index babfa5ea..75200cf6 100644
--- a/src/ser/impls.rs
+++ b/src/ser/impls.rs
@@ -44,12 +44,12 @@ impl_visit!(char, visit_char);
 
 ///////////////////////////////////////////////////////////////////////////////
 
-impl<'a> Serialize for &'a str {
+impl Serialize for str {
     #[inline]
     fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
         where S: Serializer,
     {
-        serializer.visit_str(*self)
+        serializer.visit_str(self)
     }
 }
 
@@ -426,7 +426,7 @@ impl<V> Serialize for VecMap<V>
 
 ///////////////////////////////////////////////////////////////////////////////
 
-impl<'a, T> Serialize for &'a T where T: Serialize {
+impl<'a, T: ?Sized> Serialize for &'a T where T: Serialize {
     #[inline]
     fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
         where S: Serializer,
@@ -435,7 +435,7 @@ impl<'a, T> Serialize for &'a T where T: Serialize {
     }
 }
 
-impl<'a, T> Serialize for &'a mut T where T: Serialize {
+impl<'a, T: ?Sized> Serialize for &'a mut T where T: Serialize {
     #[inline]
     fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
         where S: Serializer,
@@ -444,7 +444,7 @@ impl<'a, T> Serialize for &'a mut T where T: Serialize {
     }
 }
 
-impl<T> Serialize for Box<T> where T: Serialize {
+impl<T: ?Sized> Serialize for Box<T> where T: Serialize {
     #[inline]
     fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
         where S: Serializer,