models/johnpye/testconopt.a4c

REQUIRE "atoms.a4l";

MODEL testconopt;
	Profit, Inp, Out IS_A solver_var;
	P, L IS_A solver_var;

	K IS_A real_constant;
	Al, Ak, Ainp, Rho IS_A real_constant;
	Pinp, P0, D IS_A real_constant;
	W, L0, K0 IS_A real_constant;

	cesfn: Out = ( Al*L^(-Rho) + Ak*K^(-Rho) + Ainp*Inp^(-Rho) )^(-1/Rho);

	demandfn: Out = ( P0 - P ) / D;

	W :== 1.0;
	L0 :== 0.1;
	Pinp :== 1.0;
	Al :== 0.16;
	Ak :== 2.00;
	Ainp :== 0.16;
	Rho :== 1.0;
	K0 :== 4.0;
	P0 :== 2.0;
	D :== 0.5;
	K :== K0;

	profitfn: Profit = P*Out - (L-L0)*W - Inp*Pinp;
	maxprofit: MAXIMIZE Profit;

METHODS

METHOD default_self;
	L := 0.5;
	Inp := 0.5;
END default_self;

METHOD specify;
END specify;

METHOD values;
	L.lower_bound := L0;
	P.lower_bound := 0;
	Out.lower_bound := 0;
	Inp.lower_bound := -0.001;
END values;

METHOD on_load;
	RUN default_self;
	RUN specify;
	RUN values;
END on_load;

METHOD self_test;
	ASSERT abs(L - 0.295686) < 0.000001;
	ASSERT abs(Inp - 0.295686) < 0.000001;
	ASSERT abs(Out - 0.632019) < 0.000001;
	ASSERT abs(P - 1.683990) < 0.000001;	
END self_test;

END testconopt;
1	johnpye	786	REQUIRE "atoms.a4l";
2
3			MODEL testconopt;
4			Profit, Inp, Out IS_A solver_var;
5	johnpye	788	P, L IS_A solver_var;
6	johnpye	786
7	johnpye	788	K IS_A real_constant;
8	johnpye	786	Al, Ak, Ainp, Rho IS_A real_constant;
9			Pinp, P0, D IS_A real_constant;
10			W, L0, K0 IS_A real_constant;
11
12	johnpye	788	cesfn: Out = ( AlL^(-Rho) + AkK^(-Rho) + Ainp*Inp^(-Rho) )^(-1/Rho);
13	johnpye	786
14	johnpye	788	demandfn: Out = ( P0 - P ) / D;
15	johnpye	786
16			W :== 1.0;
17			L0 :== 0.1;
18			Pinp :== 1.0;
19			Al :== 0.16;
20			Ak :== 2.00;
21			Ainp :== 0.16;
22			Rho :== 1.0;
23			K0 :== 4.0;
24			P0 :== 2.0;
25			D :== 0.5;
26	johnpye	788	K :== K0;
27	johnpye	786
28	johnpye	788	profitfn: Profit = POut - (L-L0)W - Inp*Pinp;
29			maxprofit: MAXIMIZE Profit;
30	johnpye	786
31			METHODS
32
33			METHOD default_self;
34	johnpye	789	L := 0.5;
35			Inp := 0.5;
36	johnpye	786	END default_self;
37
38			METHOD specify;
39			END specify;
40
41			METHOD values;
42	johnpye	788	L.lower_bound := L0;
43			P.lower_bound := 0;
44			Out.lower_bound := 0;
45	johnpye	789	Inp.lower_bound := -0.001;
46	johnpye	786	END values;
47
48			METHOD on_load;
49			RUN default_self;
50			RUN specify;
51			RUN values;
52			END on_load;
53
54			METHOD self_test;
55	johnpye	788	ASSERT abs(L - 0.295686) < 0.000001;
56			ASSERT abs(Inp - 0.295686) < 0.000001;
57			ASSERT abs(Out - 0.632019) < 0.000001;
58			ASSERT abs(P - 1.683990) < 0.000001;
59	johnpye	786	END self_test;
60
61			END testconopt;