By developing a continuous-time heterogeneous agent financial market model of multi-assets traded by fundamental and momentum investors, we provide a potential mechanism for generating time-varying dominance between fundamental and non-fundamental in financial markets. We show that investment constraints lead to the coexistence of a locally stable fundamental steady state and a locally stable limit cycle around the fundamental, characterized by a Bautin bifurcation. This provides a mechanism for market prices to switch stochastically between the two persistent but very different market states, leading to the coexistence and time-varying dominance of seemingly controversial efficient market and price momentum over different time periods. The model also generates other financial market stylized facts, such as spillover effects in both momentum and volatility, market booms, crashes, and correlation reduction due to cross-sectional momentum trading. Empirical evidence based on the U.S. market supports the main findings. The mechanism developed in this paper can be used to characterize time-varying economic dominance in economics and finance in general.

1.
Abramowitz
,
M.
and
Stegun
,
I.
, “
Solutions of quartic equations
,” in
Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables
(
Dover
,
New York
,
1972
), pp.
17
18
.
2.
Amromin
,
G.
and
Sharpe
,
S.
, “
From the horse's mouth: Economic conditions and investor expectations of risk and return
,”
Manage. Sci.
60
,
845
866
(
2014
).
3.
Antoniou
,
C.
,
Doukas
,
J.
, and
Subrahmanyam
,
A.
, “
Cognitive dissonance, sentiment, and momentum
,”
J. Financ. Quant. Anal.
48
,
245
275
(
2013
).
4.
Bacchetta
,
P.
,
Mertens
,
E.
, and
van Wincoop
,
E.
, “
Predictability in financial markets: What do survey expectations tell us?
,”
J. Int. Money Finance
28
,
406
426
(
2009
).
5.
Barberis
,
N.
, “
Psychology and the financial crisis of 2007–2008
,” in
Financial Innovation: Too Much or Too Little?
, edited by
M.
Haliassos
(
MIT Press
,
Cambridge
,
2013
).
6.
Barberis
,
N.
,
Greenwood
,
R.
,
Jin
,
L.
, and
Shleifer
,
A.
, “
X-CAPM: An extrapolative capital asset pricing model
,”
J. Financ. Econ.
115
,
1
24
(
2015
).
7.
Brock
,
W.
and
Hommes
,
C.
, “
A rational route to randomness
,”
Econometrica
65
,
1059
1095
(
1997
).
8.
Brock
,
W.
and
Hommes
,
C.
, “
Heterogeneous beliefs and routes to chaos in a simple asset pricing model
,”
J. Econ. Dyn. Control
22
,
1235
1274
(
1998
).
9.
Campbell
,
S.
, “
Calculating centre manifolds for delay differential equations using maple
,” in
Delay Differential Equations: Recent Advances and New Directions
, edited by
B.
Balachandran
,
T.
Kalmár-Nagy
, and
D. E.
Gilsinn
(
Springer-Verlag
,
New York
,
2009
), pp.
221
244
.
10.
Chen
,
S.-H.
and
Huang
,
Y.
, “
Risk preference, forecasting accuracy and survival dynamics: Simulations based on a multi-asset agent-based artifical stock market
,”
J. Econ. Behav. Org.
67
,
702
717
(
2008
).
11.
Chiarella
,
C.
, “
The dynamics of speculative behaviour
,”
Ann. Oper. Res.
37
,
101
123
(
1992
).
12.
Chiarella
,
C.
,
Dieci
,
R.
, and
Gardini
,
L.
, “
Speculative behaviour and complex asset price dynamics
,”
J. Econ. Behav. Org.
49
,
173
197
(
2002
).
13.
Chiarella
,
C.
,
Dieci
,
R.
, and
Gardini
,
L.
, “
The dynamic interaction of speculation and diversification
,”
Appl. Math. Finance
12
(
1
),
17
52
(
2005
).
14.
Chiarella
,
C.
,
Dieci
,
R.
, and
He
,
X.
, “
Heterogeneity, market mechanisms and asset price dynamics
,” in
Handbook of Financial Markets: Dynamics and Evolution
, edited by
T.
Hens
and
K. R.
Schenk-Hoppe
(
Elsevier
,
2009
), pp.
277
344
.
15.
Chiarella
,
C.
,
Dieci
,
R.
,
He
,
X.
, and
Li
,
K.
, “
An evolutionary CAPM under heterogeneous beliefs
,”
Ann. Finance
9
,
185
215
(
2013
).
16.
Chordia
,
T.
and
Shivakumar
,
L.
, “
Momentum, business cycle, and time-varying expected returns
,”
J. Finance
57
,
985
1019
(
2002
).
17.
Christiansen
,
C.
, “
Volatility-spillover effects in European bond markets
,”
Eur. Financ. Manage.
13
,
923
948
(
2007
).
18.
Chu
,
L.
,
He
,
X.
,
Li
,
K.
, and
Tu
,
J.
, “
Market sentiment and paradigm shifts in equity premium forecasting
,”
QFRC Working Paper No. 356
(
UTS
,
2015
).
19.
Cooper
,
M.
,
Gutierrez
,
R.
, and
Hameed
,
A.
, “
Market states and momentum
,”
J. Finance
59
,
1345
1365
(
2004
).
20.
Daniel
,
K.
and
Moskowitz
,
T.
, “
Momentum crashes
,”
J. Financ. Econ.
122
,
221
247
(
2016
).
21.
DeMiguel
,
V.
,
Nogales
,
F.
, and
Uppal
,
R.
, “
Stock return serial dependence and out-of-sample portfolio performance
,”
Rev. Financ. Stud.
27
,
1031
1073
(
2014
).
22.
Di Guilmi
,
C.
,
He
,
X.
, and
Li
,
K.
, “
Herding, trend chasing, and market volatility
,”
J. Econ. Dyn. Control
48
,
349
373
(
2014
).
23.
Dieci
,
R.
and
He
,
X.
, “
Heterogeneous agent models in finance
,” in
Handbook of Computational Economics
, edited by
C.
Hommes
and
B.
LeBaron
(
Elsevier
,
2018
), Vol.
4
.
24.
Dieci
,
R.
,
Schmitt
,
N.
, and
Westerhoff
,
F.
, “
Interactions between stock, bond and housing markets
,”
BERG Working Paper No. 133
(
University of Bamberg
,
2018
).
25.
Dieci
,
R.
and
Westerhoff
,
F.
, “
Heterogeneous speculators, endogenous fluctuations and interacting markets: A model of stock prices and exchange rates
,”
J. Econ. Dyn. Control
34
,
743
764
(
2010
).
26.
Engelborghs
,
K.
,
Luzyanina
,
T.
, and
Samaey
,
G.
, “
DDE-BIFTOOL v. 2.00: A Matlab package for bifurcation analysis of delay differential equations
,”
Technical Report No. TW-330
(Department of Computer Science, K.U.Leuven, Leuven, Belgium,
2001
).
27.
Fama
,
E.
, “
Efficient capital markets: A review of theory and empirical work
,”
J. Finance
25
,
383
423
(
1970
).
28.
Fama
,
E.
, “
Two pillars of asset pricing
,”
Am. Econ. Rev.
104
,
1467
1485
(
2014
).
29.
Faria
,
T.
and
Magalhaes
,
L.
, “
Normal forms for retarded functional differential equations with parameters and applications to Hopf bifurcation
,”
J. Differ. Equations
122
,
181
200
(
1995
).
30.
Forbes
,
K.
and
Rigobon
,
R.
, “
No contagion, only interdependence: Measuring stock market comovements
,”
J. Finance
57
,
2223
2261
(
2002
).
31.
Gaunersdorfer
,
A.
,
Hommes
,
C.
, and
Wagener
,
F.
, “
Bifurcation routes to volatility clustering under evolutionary learning
,”
J. Econ. Behav. Org.
67
,
27
47
(
2008
).
32.
Gebhardt
,
W.
,
Hvidkjaer
,
S.
, and
Swaminathan
,
B.
, “
Stock and bond market interaction: Does momentum spill over?
,”
J. Financ. Econ.
75
,
651
690
(
2005
).
33.
Greenwood
,
R.
and
Shleifer
,
A.
, “
Expectations of returns and expected returns
,”
Rev. Financ. Stud.
27
,
714
746
(
2014
).
34.
Grinblatt
,
M.
and
Moskowitz
,
T.
, “
Predicting stock price movements from past returns: The role of consistency and tax-loss selling
,”
J. Financ. Econ.
71
,
541
579
(
2004
).
35.
Guckenheimer
,
J.
and
Holmes
,
P.
,
Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields
, Vol.
42
of Applied Mathematical Sciences (
Springer
,
1983
).
36.
Hassard
,
B.
,
Kazarinoff
,
N.
, and
Wan
,
Y.
,
Theory and Applications of Hopf Bifurcation
(
Cambridge University Press
,
Cambridge
,
1981
).
37.
He
,
X.
, “
Recent developments in asset pricing with heterogeneoue beliefs and adaptive behaviour of financial markets
,” in
Global Analysis of Dynamic Models in Economics and Finance: Essays in Honour of Laura Gardini
, edited by
G. I.
Bischi
,
C.
Chiarella
, and
I.
Sushko
(
Springer
,
2013
), pp.
1
32
.
38.
He
,
X.
and
Li
,
K.
, “
Heterogeneous beliefs and adaptive behaviour in a continuous-time asset price model
,”
J. Econ. Dyn. Control
36
,
973
987
(
2012
).
39.
He
,
X.
and
Li
,
K.
, “
Profitability of time series momentum
,”
J. Banking Finance
53
,
140
157
(
2015
).
40.
He
,
X.
,
Li
,
K.
, and
Li
,
Y.
, “
Asset allocation with time series momentum and reversal
,”
J. Econ. Dyn. Control
(
2018
).
41.
He
,
X.
,
Li
,
K.
, and
Wang
,
C.
, “
Volatility clustering: A nonlinear theoretical approach
,”
J. Econ. Behav. Org.
130
,
274
297
(
2016
).
42.
He
,
X.
,
Li
,
K.
,
Wei
,
J.
, and
Zheng
,
M.
, “
Market stability switches in a continuous-time financial market with heterogeneous beliefs
,”
Econ. Modell.
26
,
1432
1442
(
2009
).
43.
Heston
,
S.
and
Sadka
,
R.
, “
Seasonality in the cross-section of stock returns
,”
J. Financ. Econ.
87
,
418
445
(
2008
).
44.
Hommes
,
C.
, “
Heterogeneous agent models in economics and finance
,” in
Handbook of Computational Economics
, edited by
L.
Tesfatsion
and
K. L.
Judd
(
North-Holland
,
2006
), Vol.
2
, pp.
1109
1186
;
Agent-based computational economics
,” in
Handbook of Computational Economics
, edited by
L.
Tesfatsion
and
K. L.
Judd
(
North-Holland
,
2006
).
45.
Hong
,
Y.
, “
A test for volatility spillover with application to exchange rates
,”
J. Econometrics
103
,
183
224
(
2001
).
46.
Jegadeesh
,
N.
and
Titman
,
S.
, “
Returns to buying winners and selling losers: Implications for stock market efficiency
,”
J. Finance
48
,
65
91
(
1993
).
47.
Jegadeesh
,
N.
and
Titman
,
S.
, “
Profitability of momentum strategies: An evaluation of alternative explanations
,”
J. Finance
56
,
699
720
(
2001
).
48.
Jostova
,
G.
,
Nikolova
,
S.
,
Philipov
,
A.
, and
Stahel
,
C.
, “
Momentum in corporate bond returns
,”
Rev. Financ. Stud.
26
,
1649
1693
(
2013
).
49.
King
,
M.
,
Sentana
,
E.
, and
Wadhwani
,
S.
, “
Volatility and links between national stock markets
,”
Econometrica
62
,
901
933
(
1994
).
50.
Kuchler
,
T.
and
Zafar
,
B.
,
Personal Experiences and Expectations about Aggregate Outcomes, Working Paper
(
New York University/Federal Reserve Bank
,
New York
,
2016
).
51.
Kuznetsov
,
Y.
,
Elements of Applied Bifurcation Theory
(
SV
,
New York
,
2004
).
52.
LeBaron
,
B.
, “
Agent-based computational finance
,” in
Handbook of Computational Economics
, edited by
L.
Tesfatsion
and
K. L.
Judd
(
North-Holland
,
2006
), Vol.
2
, pp.
1187
1233
;
Agent-based computational economics
,” in
Handbook of Computational Economics
, edited by
L.
Tesfatsion
and
K. L.
Judd
(
North-Holland
,
2006
).
53.
Lo
,
A.
and
Mackinlay
,
A.
, “
When are contrarian profits due to stock market overreaction?
,”
Rev. Financ. Stud.
3
,
175
205
(
1990
).
54.
Lux
,
T.
, “
Stochastic behavioural asset pricing and stylized facts
,” in
Handbook of Financial Markets: Dynamics and Evolution
, edited by
T.
Hens
and
K. R.
Schenk-Hoppé
(
Elsevier
,
2009
), pp.
161
215
.
55.
Marsili
,
M.
,
Raffaelli
,
G.
, and
Ponsot
,
B.
, “
Dynamic instability in generic model of multi-assets markets
,”
J. Econ. Dyn. Control
33
,
1170
1181
(
2009
).
56.
Mclean
,
R.
and
Pontiff
,
J.
, “
Does academic research destroy stock return predictability?
,”
J. Finance
71
,
5
32
(
2016
). (
57.
Moskowitz
,
T.
,
Ooi
,
Y.
, and
Pedersen
,
L.
, “
Time series momentum
,”
J. Financ. Econ.
104
,
228
250
(
2012
).
58.
Nazlioglu
,
S.
,
Erdem
,
C.
, and
Soytas
,
U.
, “
Volatility spillover between oil and agricultural commodity markets
,”
Energy Econ.
36
,
658
665
(
2013
).
59.
Schmitt
,
N.
and
Westerhoff
,
F.
, “
Speculative behavior and the dynamics of interacting stock markets
,”
J. Econ. Dyn. Control
45
,
262
288
(
2014
).
60.
Schwert
,
G.
, “
Anomalies and market efficiency
,” in
Handbook of the Economics of Finance
, edited by
G. M.
Constantinides
,
M.
Harris
, and
R. M.
Stulz
(
North-Holland
,
Amsterdam
,
2003
).
61.
Shiller
,
R.
, “
From efficient markets theory to behavioral finance
,”
J. Econ. Perspect.
17
,
83
104
(
2003
).
62.
Shiller
,
R.
, “
Speculative asset prices
,”
Am. Econ. Rev.
104
,
1486
1517
(
2014
).
63.
Sushko
,
I.
,
Agliari
,
A.
, and
Gardini
,
L.
, “
Bifurcation structure of parameter plane for a family of unimodal piecewise smooth maps: Border-collision bifurcation curves
,”
Chaos, Solitons Fractals
29
,
756
770
(
2006
).
64.
Sushko
,
I.
,
Gardini
,
L.
, and
Matsuyama
,
K.
, “
Robust chaos in a credit cycle model defined by a one-dimensional piecewise smooth map
,”
Chaos, Solitons Fractals
91
,
299
309
(
2016
).
65.
Vissing-Jorgensen
,
A.
, “
Perspectives on behavioral finance: Does irrationality disappear with wealth? Evidence from expectations and actions
,”
NBER Macroecon. Annu.
18
,
139
194
(
2003
).
66.
Wang
,
K.
and
Xu
,
J.
, “
Market volatility and momentum
,”
J. Empirical Finance
30
,
79
91
(
2015
).
67.
Westerhoff
,
F.
, “
Multiasset market dynamics
,”
Macroecon. Dyn.
8
,
591
616
(
2004
).
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